Is Pregnancy Test Accurate 13 Days After Trigger Shot?

Is it accurate to take a pregnancy test 13 days after breaking the ovulation needle?

Hello Doctor: This morning I took a pregnancy test, and after about two to three minutes, a faint second line appeared.
However, I received an ovulation trigger shot 13 days ago.
Is this result accurate? Thank you.

Ding Ding, 20~29 year old female. Ask Date: 2013/04/04

Dr. Cao Guotao reply Obstetrics and Gynecology

Hello, the pregnancy test shows a positive result, which likely indicates that you are pregnant.
Congratulations! However, it is still important to monitor the situation as it is not yet stable.
If you have any questions, you can consult a common obstetrician or gynecologist.
Wishing you health, Dr.
Tsao Kuo-Tao, Director of the Department of Obstetrics and Gynecology, Taipei City Hospital.

Reply Date: 2013/04/04

More Info

When it comes to pregnancy testing after a trigger shot, the accuracy of the test can be influenced by several factors, including the timing of the test in relation to ovulation and the presence of the hormone hCG (human chorionic gonadotropin) in your system.
In your case, you mentioned that you took a pregnancy test 13 days after receiving a trigger shot. The trigger shot, often containing hCG, is used to induce ovulation and can remain in your system for a period of time. Typically, hCG from a trigger shot can be detected in the body for about 7 to 14 days after administration, depending on the dosage and individual metabolism. Therefore, testing too soon after the trigger shot can lead to a false positive result due to the residual hCG from the injection rather than indicating a new pregnancy.

However, if you are testing 13 days post-trigger shot and you see a faint second line, it could indicate a positive result, suggesting that you may be pregnant. The faintness of the line can be attributed to the level of hCG in your urine. Early in pregnancy, hCG levels can be low, leading to a faint line on a home pregnancy test. Generally, the sensitivity of the test and the concentration of hCG in your urine can affect the visibility of the line.

To ensure the accuracy of your results, it is often recommended to wait a few more days and retest, ideally around the time of your expected period. If you continue to see a positive result, it would be wise to consult with a healthcare provider for a blood test, which can provide a more definitive answer regarding your pregnancy status. Blood tests can detect lower levels of hCG and can confirm pregnancy earlier than home urine tests.

In summary, while a pregnancy test taken 13 days after a trigger shot can provide some insight, it is essential to consider the potential for residual hCG from the shot. If you suspect you might be pregnant, follow up with a healthcare provider for further testing and guidance. This will help clarify your situation and ensure that you receive the appropriate care moving forward.

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