Positive pregnancy test after ovulation

Late period, negative test — pregnant or not?

Your period is overdue and there are still no signs of it. Trembling with excitement you take the pregnancy test, holding your breath while you wait for the result. After a minute that feels like forever, you open your eyes and see … a single line. The test is negative. So why hasn’t your period started? And are you pregnant or not?

Delayed ovulation

When your period is delayed, the most likely reason is that the day of your expected period is miscalculated. Even if you usually have perfectly regular cycles, you may suddenly have a cycle that is longer than normal. This is almost always because ovulation for some reason happened later than usual in that cycle.

The menstrual cycle has two phases: The follicular phase and the luteal phase. The follicular phase starts on the first day of your period, and ends the day you ovulate. The luteal phase starts the day after ovulation, and ends on the last day before your next period.

The length of the follicular phase may change from one cycle to the next. The length of the luteal phase, on the other hand, is typically stable. It varies from woman to woman, and any number of days between 12 and 16 is normal, but your individual luteal phase length will be the same in every cycle.

Let’s say your usual cycle length is 27 days, with ovulation on day 15 and a luteal phase of 12 days. The 28th day your period arrives, starting a new cycle. Then one month, ovulation doesn’t happen until day 19 of your cycle. The luteal phase will still be 12 days long as usual, which means this cycle will be 31 days instead of the usual 27. When your period doesn’t start on day 28, it’s therefore not really delayed – it is now not expected until day 32.

Delayed ovulation is most often caused by some kind of stress, either positive or negative. Travels, exams, illnesses, exciting experiences or just coincidence may cause late ovulation and hence a “delayed” period.

If you are measuring your basal body temperature and know when you ovulated, and you also know the usual length of your luteal phase, you can easily calculate the day of your expected period. If you are using ovulation tests, you also have a good indication of your ovulation day, but remember that a positive ovulation test doesn’t guarantee that you actually ovulated. Ovulation may have happened later than you think, or not at all.

Can I be pregnant even if the test is negative?

Pregnancy tests turn positive when they detect the presence of the hormone hCG (human chorionic gonadotropin) in your urine. The secretion of hCG starts when the fertilized egg implants in your uterus between 6 and 12 days after ovulation. The first few days, however, there is too little hCG for the test to detect it. It is therefore possible to get a negative pregnancy test even if you are actually pregnant, if you are testing too early.

Most pregnant women will get a positive pregnancy test 12 days after ovulation, but if the egg doesn’t implant until 12 days after ovulation, it will obviously take a few more days before the tests turn positive. It is also possible to get a positive test earlier than 12 days after ovulation (sometimes as early as 8 or 9 days after ovulation), but you shouldn’t expect it. A negative test taken earlier than 12 days after ovulation should not be considered a reliable result.

Let’s use the same example as above. In a typical cycle, day 28 would correspond to the 12th day of the luteal phase, and you should get a positive pregnancy test if you had conceived. But because ovulation happened 4 days later than usual, day 28 is only 9 days after ovulation, and it’s probably too early to get a positive result. Perhaps you are pregnant, perhaps you are not. Wait a few more days, and take a new test if you still haven’t got your period.

You can read more about how and when to test in our article about pregnancy tests.

Corpus luteum cysts

If you know your ovulation day with certainty, and you have got neither your period nor a positive pregnancy test when your luteal phase should normally be over, you may have a corpus luteum cyst.

When you ovulate, a mature egg cell is released from the follicle (or follicular sac) and starts its journey though the fallopian tube towards the uterus. The ruptured follicle transforms into a secretory gland known as the the corpus luteum (“yellow body” in latin), hence the name luteal phase. The corpus luteum now begins to produce the hormone progesterone, which keeps the uterine lining intact and ready for a fertilized egg to implant. If conception doesn’t happen, the corpus luteum disintegrates, and progesterone levels drop until the uterine lining is no longer sustained. The lining is shed and you get your period.

Sometimes, however, the follicular sac reseals after having released the egg, and fluid accumulates inside it. This causes the corpus luteum to grow into a cyst, which keeps producing progesterone beyond the usual luteal phase length. This is called a corpus luteum cyst. These cysts are harmless and do usually not cause any other symptoms than the missed period, but if they grow big they may cause pelvic or abdominal pain. Corpus luteum cysts usually disappear by themselves after a few weeks.

A corpus luteum cyst will not prevent conception, nor will it usually affect the pregnancy. If you aren’t pregnant, however, it can be frustrating to wait for a new cycle and another chance of conception. If you suspect that you may have a corpus luteum cyst, contact your physician or your gyneacologist. In most cases, ultrasound will confirm the diagnosis. You may be asked to come back in three months to check that the cyst has disappeared.

If you are not quite sure when you ovulated, there is little else to do than wait for your period and take new tests every couple of days. If you are certain of your ovulation day, and your luteal phase has lasted more than two days longer than usual, you should contact your doctor to check if you have a corpus luteum cyst.

Positive pregnancy test after ovulation

Have You Ever Had a False Positive on Your Pregnancy Test?

After months and months of trying to get pregnant, you finally get that BFP. The pure joy, happiness and elation can’t even be described. You immediately picture yourself holding your new little one, kissing the top of their soft head. It is a warmness that fills your heart. A feeling that can’t be duplicated.

Then imagine, a week later having this all taken away from you in one devastating moment.

If you talked with your TTC friends, you are sure to find someone who has experienced this. Or maybe it has even happened to you. One of the hardest and most heartbreaking moments during the TTC (trying to conceive) journey is when you end up with a false positive pregnancy test.

It is definitely an experience that knocks you over. You want to know how you could have possibly gone from being pregnant to getting a BFN is such a short time. You want answers, even though they won’t help the heartbreak.

Although there are many different possible reasons, there are a couple that tend to be more common than others.

One reason could be that you were actually looking at the evaporation line on your pregnancy test. It only takes a few minutes for this to happen. It is common to leave a negative pregnancy test on the counter to come back to it 5-10 minutes later only to find a second line. Even though the second line is there, it is still the same negative pregnancy test.

I think the most emotionally taxing experience of getting a false positive has to be when it is a chemical pregnancy. I only say this because it is hard to know that you were able to get pregnant, it was just that the body was not able to support the pregnancy. There are a myriad of reasons for why it happens, but it is still hard to swallow.

My fingers are crossed for all the active TTC’ers out there that this month your BFP sticks and you are soon able to celebrate the arrival of a new little one!

Positive pregnancy test after ovulation

How Soon After Ovulation Will a Pregnancy Test Show Positive?

If you are TTC you already know that this is a question you are asking yourself every month: When can I test?

To answer this question there are two pieces of important information that you will need:

When Did You Ovulate?

After Ovulation, if the sperm were available and conception took place, then it takes about 4 – 12 days for the fertilized egg to make the journey down the fallopian tube and find a prime place to burrow into the rich lining of the uterus. What will soon become the placenta starts to produce HCG and is sent out into the body to let it know that there is no need to mensturate. Once the HCG is sent out into the bloodstream it takes a small amount of time for the kidneys to begin filtering it and that is when the urine starts containing HCG. HCG levels generally double every 24 to 36 hours. Within 2 to 3 days after HCG has first been released, many women will be able to pick up a positive result if using one of the most sensitive tests.

How Sensitive Is The Pregnancy Test?

Once you have those two pieces of information you should be able to predict when you might be able to start getting a positive test result. Now, we know that it takes about 4 to 12 days for the egg to find its way down the tube and burrow into the uterus and we also know that within 2 to 3 days after HCG has been released many women will be able to pick up a positive result. Let us say that you ovulated on the 14th of the month. The soonest that the egg could possibly have burrowed in would be four days after ovulation which would be the 18th of the month. Then it takes 2 to 3 days for the HCG to start being released in your urine and that takes us up to the 21st of the month. That is 7 days after you ovulated. This is the very soonest that you might be able to get a positive result. On the other hand, many women will not get a positive result until after her missed period. Let’s take a look why. Let’s say that you ovulated on the 14th of the month, again. But this time it took your fertilized egg the longest amount of time to burrow into the uterus, which is about 12 days. This takes us up to the 26th of the month. Then it takes about 3 days for the HCG to start being released in your urine. In this case it would take you up to the 29th of the month. That is 15 dpo. That is a day after your missed menstrual period. Now look closely at these two scenarios. This is why two successful cycles can be very different in the amount of time that it takes to get a positive test result. There are also other reason that the time it takes to get a positive result may vary. A big reason is that many women, even when using proven methods, may miscalculate the date that ovulation happened on.

So basically, before 7 days after Ovulation it is pretty certain that you are not going to get an accurate result because all of these certain events have to happen before HCG can be picked up on an HPT. I know how hard it is to try to refrain from testing. I love to test, it gives me such great pleasure. But, I know that the absolute earliest that I am going to get a positive result is about 7 days after ovulation and that is only if everything went perfectly and the fertilized egg went very quickly and burrowed right in. Alot of the time the fertilized egg will just float around a while in the uterus before it burrows in. So, I usually try to aleast wait until 10 DPO before testing. I figure that it gives me a much better chance at getting a BFP. Whatever you decide, to test or wait, good luck to you! I know that it is hard to wait. But at least now you have information about how the process works so that you understand why it may take longer for some women to get a positive test.

Positive Pregnancy Test: When And How Early After Implantation?

When is the urine hCG test positive after implantation?

A blood pregnancy test is usually positive 3-4 days after implantation and a urine pregnancy hCG test is usually positive several days later or about 4-5 days after implantation.

You want to take a pregnancy test, but you have questions: How long do I have to wait after a missed period before I take a test? How long after implantation can I test? It can be confusing.

A positive pregnancy blood test first happens about 3-4 days after implantation bleeding and about 4-5 days before a missed period. T he early urine home positive pregnancy test (HPT) can usually detect pregnancy 6-7 days after implantation. Sometimes it can be as early as 2-3 days before the missed period. Implantation usually happens about 9 days (range 6-12 days) after ovulation, fertiliziation or about 8 days before the next period.

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How early can I take a pregnancy test?

The Implantation Calculator will calculate for you the indivual dates of implantation as well as when to take the pregnancy test.

An early pregnancy test becomes positive only after the fertilized egg has arrived inside the uterus and implanted into the uterus and then sent enough amounts of hCG, human chorionic gonadotropin, the pregnancy hormone, into your blood stream and from there into the urine.

The urine pregnancy test (home pregnancy test or HPT) checks for the presence of the pregnancy hormone hCG in the urine. hCG is made by the implanting blastocyst and first appears in the maternal blood around implantation, on average 9 days (range: 6-12 days) after ovulation. Blood hCG levels then rise rapidly to reach a peak at 7-10 weeks. They decline after that time.

You can interactively and for free do our online pregnancy test to find out if you are pregnant or not HERE .

A negative HPT result 10+ days after the missed period makes a pregnancy unlikely. With the present generation of test kits, false-positive results due to interfering materials are extremely unlikely. Pregnancy tests have now reached a level of sensitivity and specificity that is unlikely to be surpassed either by better tests or alternative technology.

Positive pregnancy test results can show up any time before or after a missed period. Read below more about when the pregnancy test result first becomes positive.

The early urine ept HPT pregnancy test result is usually positive within 10-12 days after ovulation which is about 3-4 days after implantation

An early pregnancy test result checks for the presence of the pregnancy hormone hCG human chorionic gonadotropin in the urine.

hCg is detectable in the blood only after implantation. Implantation, the attachement of the fertilized egg to the uterus, happens on average 7-9 days after ovulation with a range of 6-12 days. You need to find enough hCG in the urine to get a positive pregnancy test, and with most current pregnancy test kits (sensitivity 25 milli-international units per milliliter) the pregnancy hormone hCG can be detected in the urine as early as 3-4 days after implantation (9-15 days after ovulation), though oftentimes it can take longer because the urine may be diluted or there is not enough hCG yet in the urine, or implantation happens later than extected. Our pregnancy calendar will help you calculate the due date and other important dates, and our ovulation calendar will calculate your fertile days.

Here are the expected positive positive home pregnancy tests in women who are pregnant based on a scientific study:

Expected Period (EP)

Pregnancy Test Positive?

  • About one in two HPTs are expected to be positive 2-3 days before a missed period
  • Three in four HPTs are expected to be positive on the day you miss your period

  • A negative pregnancy test on the day of a missed period is normal in about one in four pregnancies, and within the next 4-5 days most HPTs usually have become positive.

  • A negative HPT result 10+ days after the missed period makes a pregnancy unlikely.

    From: Wilcox in JAMA 2001; 286:1759

    Positive Blood Pregnancy test

    The blood pregnancy test is usually positive within 3-4 days after implantation or about 9-10 days after fertilization and ovulation. About 5-6 days before a missed period

    Positive Urine early home Pregnancy Test (HOME HPT)

    The early positive urine pregnancy test will become positive about 2-3 days after the positive blood test or about the time of a missed period, and sometimes a couple of days before the missed period. About 25% of pregnant women will test positive with the early home pregnancy test about 2 days before a missed period, and about 40% the day before the missed period.

    The wide variation of when the urine pregnancy test becomes positive and how early pregnancy can be detected are due to four variables which determine when the home urine pregnancy test becomes positive:

    1. Timing of Implantation

    A pregnancy test detects the presence of the pregnancy hormone hCG (human chorionic gonadotropin) either in the blood or in the urine only after implantation. Implantation can happen as early as six days and as late as 12 days after fertilization/ovulation. At the time of implantation the placenta starts making the pregnancy hormone hCG, which then enters the blood stream. How early pregnancy can be detected depends on the pregnancy hormone hcG which can be detected in the blood about three to four days after implantation. Urine hCG can be detected about two to three days after blood hCG can first be seen. Detection of hCG depends on timing of implantation, so hCG can normally be detected in the blood between nine and 16 days after ovulation (HPT: 12-19 days after ovulation).

    2. Blood hCG Level

    There is a wide normal variation of hCG levels, both in the blood and the urine and this wide range changes the diagnosis of how early can pregnancy be detected. If a woman has a normal but low blood hCG levels, then it can take several more days for it to show up on a pregnancy test.

    3. Urine hCG level

    Urine hCG levels change over the course of the day depending on how much you drink and how diluted or concentrated the urine is. Urine pregnancy testing is best done with more concentrated urine. So how early can pregnancy be detected depends on the urine concentration and the quality of the early pregnancy test. If you drink a lot of fluid, the urine may be too diluted early on in pregnancy to achieve an hCG concentration adequate enough for a positive test.

    4. Sensitivity of the Early Urine Home Pregnancy Test

    Different pregnancy tests have different sensitivities and that has an impact on how early can pregnancy be detected. The lower the sensitivity, the earlier a pregnancy test becomes positive. Sensitivities are indicated in mIU/mL, the lowest amount of hCG in the urine that tests positive. A sensitivity of 20 mIU/mL requires one-half the hCG level to be positive when compared with a 40 mIU/mL sensitivity level, and it may become positive several days earlier than the pregnancy test with a higher sensitivity. Make sure you read the package of the pregnancy test to determine your pregnancy test’s sensitivity.

    A positive pregnancy test occurs only after the fertilized egg has implanted into the uterus and sent enough hCG (i.e. the “pregnancy hormone”) into your blood stream. So the first positive pregnancy test does not usually happen until a couple of days prior to the next expected period. If it is truly positive then it’s highly likely that you are pregnant because false positive pregnancy tests rarely occur.

    CALCULATOR: When to take the pregnancy test

    After ovulation and fertilization the fertilized egg or blastocyst takes 4-5 days to travel through the Fallopian tube towards the uterus and it then usually implants inside the uterus. Implantation , when the fertilized egg the embryo implants into the endometrium, happens about 9 days after ovulation (range: 6-12 days), and it takes another 3-4 days after implantation (9-10 dpo: days after ovulation) for the blood pregnancy test to first become positive.

    • Blood Pregnancy Test: If you are pregnant then the blood pregnancy test is usually positive within 3-4 days after implantation or about 9-10 days after fertilization and ovulation.

    • Urine Home Pregnancy Test (HPT): The urine pregnancy test will usually not become positive in most women until a missed period or about a week after implantation. The urine test is usually positive at a missed period, but only about 25% of pregnant women will test positive with the HPT 2 days before a missed period, and about 40% the day before the missed period. On average, a pregnancy test will be positive 13-14 days after ovulation and fertilization, or about the time you expect your menstrual period.

    The amount of time it takes for a pregnancy to be detected and the wide variation of time it takes for a urine pregnancy test to become positive is due to five variables:

  • Timing of implantation

  • A woman’s weight (being overweight lowers the hCG)

  • Urine hCG level (e.g. how concentrated or diluted the urine is)

  • Sensitivity of the pregnancy test

    1. Timing/Day of Ovulation : A pregnancy test depends on the day of implantation and the urine pregnancy test is usually positive 4-5 days after implantation. However, the day of ovulation is important too, as implantation can only happen if ovulation took place and the egg was fertilized. Therefore, if your day of ovulation was later than you thought, implantation and subsequently the positive pregnancy test will also be delayed. This is why it is really important to keep track of your ovulation day (OD) so you can start counting the days to implantation and eventually the positive pregnancy test.

    2. Timing of Implantation: A pregnancy test detects the presence of the pregnancy hormone hCG (human chorionic gonadotropin) either in the blood or in the urine. The hCG in the urine comes from the hCG in the blood after being filtered through the kidney. After ovulation, the egg gets fertilized and travels through the fallopian tube toward the uterus. This journey takes about a week on average. Implantation, the attachment of the fertilized egg to the lining of the uterus, occurs on average about a week or so after ovulation/fertilization, but it can happen as early as six days and as late as 12 days after fertilization/ovulation. At the time of implantation, the placenta starts making the pregnancy hormone hCG, which then enters the blood stream. How early a pregnancy can be detected depends on the pregnancy hormone hcG, which can be detected in the blood about three to four days after implantation. Urine hCG can be detected about two to three days after the blood hCG can first be seen. Detection of hCG depends on timing of implantation, so hCG can normally be detected in the blood between nine and 16 days after ovulation (HPT: 12-19 days after ovulation).

    3. Blood hCG Level: There is a wide variation of “normal” hCG levels, both in the blood and the urine. This wide range changes the diagnosis of how early a pregnancy can be detected. If a woman has low blood hCG levels, for example, it can take several more days for it to show up on a pregnancy test. If a woman is overweight, with a high BMI, then the blood hCG levels are often lower.

    4. Urine hCG Level: Urine hCG levels change over the course of the day depending on how much you drink and how diluted or concentrated the urine is. The time it takes for a pregnancy to be detected depends on the urine concentration. If you drink a lot of fluid, the urine may be too diluted early to achieve an hCG concentration adequate enough for a positive test. Urine pregnancy testing is best done with more concentrated urine.

    5. Sensitivity of Urine Home Pregnancy Test: Different pregnancy tests have different sensitivities, which affects how soon a pregnancy can be detected. The lower the sensitivity, the earlier a pregnancy test becomes positive. Sensitivities are indicated in mIU/mL, the lowest amount of hCG in the urine that tests positive. A sensitivity of 20 mIU/mL requires one-half the amount of hCG to be positive as a test with a 40 mIU/mL sensitivity level; it may become positive several days earlier than the pregnancy test with a higher sensitivity. Make sure you read the package of the pregnancy test to determine your pregnancy test’s sensitivity.

    Spotting and positive pregnancy test

    Some bleeding early in pregnancy, maybe some drops or brown discharge, is also called ‘spotting.’ Spotting happens in 20-30% of pregnant women, usually around the time of the missed period, and most women with spotting continue and deliver a healthy baby. Implantation bleeding usually happens 5-6 days after ovulation. If your pregnancy test is positive, then implantation happened at least 4-5 days ago and it’s unlikely that the spotting represents implantation bleeding. If you have a positive HPT and you experience spotting with pain and cramping, you should contact your doctor right away. Your doctor can check the viability of your pregnancy by doing two hCG blood tests 48-72 hours apart. If the hCG levels more than double, then you have a viable pregnancy.

    По материалам:

    Late period, negative test — pregnant or not?

    http://www.ovulation-calculator.com/content/have-you-ever-had-false-positive-your-pregnancy-test

    http://www.fertilityhelper.net/how_soon_after_ovulation_will_a_pregnancy_test_show_positive.html

    http://www.babymed.com/positive-pregnancy-test-when-and-how-early-after-implantation

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