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If I Had A Hcg Shot, When Can I Take A Pregnancy Test And Get Accurate Results?

Home pregnancy tests (HPTs) are designed to detect hCG (Human Chorionic Gonadotropin), a hormone released by the placenta right after the embryo begins implanting into the uterine lining. The hormone is released in the urine of a woman who is pregnant. For best results use pregnancy tests that detect the lowest number of units. These will be more sensitive and give you the earliest results.

Many women are prescribed hCG (Human Chorionic Gonadotropin) injections (Profasi, Pregnyl) to trigger ovulation or to lengthen the luteal phase. hCG (Human Chorionic Gonadotropin) is slowly cleared from the body. This may give a false positive on a pregnancy test. Some trace amounts of hCG (Human Chorionic Gonadotropin) can remain in the body as long as 14 days or longer after the last hCG injection. Thus, even after 10 days, there are still several hundred units of hormone available be excreted into the urine and to give a false-positive home pregnancy test.


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If you had an hCG (Human Chorionic Gonadotropin) shot and want to take a home pregnancy test, you must keep this in mind. Approximately one half of drug is removed each 28 hours and so for accurate results you should wait at least 12 days and preferably 14 days from an hCG (Human Chorionic Gonadotropin) injection to be confident that a qualitative test is giving a reliable answer. If you test too soon after an hCG (Human Chorionic Gonadotropin) shot, you might get a false positive. Most doctors recommend that you wait 14 days after a 10,000 IU injection, 10 days after a 5,000 IU injection, or 7 days after a 2,500 IU injection.

Two consecutive quantitative hCG (Human Chorionic Gonadotropin) beta blood tests can determine whether the hCG is from an injection or pregnancy. If the hCG (Human Chorionic Gonadotropin) level increases by the second test then there is distinct probability that you are pregnant.

  • Samantha

    I was taking hcg weight loss shots every other day for two months then I had a positive pregnancy test the doctor told me to stay off the shots for 72 hrs before testing again I’m now 8 weeks and counting

  • Deisi

    I took a choragon shot March 8th its now march 23 rd I have three positive pregnancy tests Hoping its true


Last modified: February 10, 2013


The information provided here should not be considered medical advice. It is based on the average experience of women trying to conceive and may not be what you may be experiencing. It's not meant to be a replacement for any advice you may receive from your doctor. If you have any concerns about your cycle or our ability to get pregnant, we advise you to contact your doctor.