Positive pregnancy test 9 days after embryo transfer

Pregnancy Test

The detection of a pregnancy hormone called, Beta-hCG is only possible after successful embryo transfer. This hormone is very significant in pregnancy tests and can tell us about the pregnancy result. It is why doctors recommend doing a blood pregnancy test to confirm the pregnancy.

You should not go for a urine pregnancy test before two weeks of embryo transfer because the hCG level varies at the time of pregnancy. It remains constant in the initial stage, but it decreases in case of miscarriage.

What Do We Measure in Pregnancy Tests

During a pregnancy test, doctors measure beta-human chorionic gonadotropin hormone. This hormone comes from the trophectoderm cells of the embryo. After the implantation, its production increases and becomes noticeable.

Implantation occurs after three to eight days of the embryo transfer procedure. It indicates the presence of the production of hCG in your bloodstream in a detectable account. The amount of HCG increases with the progress of the pregnancy. After ten days of ovulation, 25 mIU hCG is present in an average woman, but it becomes 50 mIU after 12 days and doubles again after two weeks. This measurement varies from one woman to another woman.

Blood Pregnancy Test and Home pregnancy test

One can do a blood test for hCG to confirm the pregnancy. When you visit a doctor for this test, they can monitor and measure the presence of hCG in the blood. It is more appropriate, reliable and sensitive than a home pregnancy test.

Also, people can measure hCG level with a home pregnancy test or urine test, as well. The sensitivity varies from one to another pregnancy test. The home pregnancy test is sensitive to 100 mIU, and it cannot detect if one’s level is 75 mIU. You may not get the accurate result until you test it after some days of embryo implantation. Repeat the test if your test result comes negative.

So, if you do a home pregnancy test in the initial stages, it can show you an inappropriate result. Your excitement for testing is understandable, but you have to wait for it.

HCG Test vs Ultrasound

The people who face several IVF failures, it is hard for them to believe that they are finally pregnant even after seeing the positive result. In some cases, a low level of hCG can occur in normal pregnancies, and they also deliver normal and healthy babies. You can opt for doing an ultrasound rather than testing the hCG level to test the pregnancy. To confirm the yolk presence and gestational sac, they will perform an ultrasound scan after two weeks.

So, in cases where an HCG test doesn’t confirm a pregnancy, an ultrasound scan can.

The Right Time For a Pregnancy Test

Many people wonder why they cannot test hCG after one week of embryo transfer. It is because it doesn’t make any sense. A doctor can detect a healthy pregnancy at the right time when it starts producing the hCG hormone. Results of any test made before two weeks of embryo transfer will be similar to the one given by your doctor before 36 hours of egg collection. Doctors perform repeated blood tests for HCG after 48 to 72 hours.

The increasing level of hCG indicates a healthy pregnancy, but if it is not happening like that, this can be a non-workable pregnancy. If the person is bleeding, she also needs to do the test because bleeding can occur in a pregnant woman, too. If you experience spotting or bleeding, you need not worry.

Unfortunately, your standard at-home pregnancy tests that you buy at a drugstore are not very accurate as an IVF pregnancy test. Too often, they’ll show false positives or false negatives, especially if the test is done too early. Here’s why.

Throughout IVF treatment, you’ll be taking fertility medications and hormones to help your body conceive. Right before egg retrieval, your fertility specialist will inject a large boost of hormones. Combined, these fertility drugs will increase the presence of the hCG hormone in your body.

The human chorionic gonadotropin (or hCG) hormone is known as the pregnancy hormone because it is produced by the body when pregnant. At-home pregnancy tests specifically look for the presence of hCG in the urine to determine if a person is pregnant.

Because the pregnancy test simply reads the level of hCG that’s already in your body due to fertility treatments, an at-home pregnancy test that is performed too early may lead to false positive results. Similarly, an early pregnancy test may produce a false negative result if your hCG hormones have not yet increased to levels detectable by an at-home pregnancy test.

You can avoid some of these at-home false positives or negatives by waiting for the 7-day period of time following your embryo transfer. This is how long most clinics recommend that patients wait before testing. At the Fertility Institute, we recommend that all of our patients simply avoid at-home pregnancy tests. Even with the wait, these pregnancy tests are simply too unreliable for IVF patients, with potentially-high emotional costs with a false positive or negative. Instead, we always suggest in-clinic IVF pregnancy tests for our patients.

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