i had sex with my girlfriend during her period and we don't know if she's pregnant or not. How long should we wait before taking a pregnancy test?
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It's unlikely she's pregnant, just from the timing, but it is possible.
Sperm can live about 5 days. The egg, only 48 hours after ovulation. She'd likely ovulate between days 11-16 of her cycle, the day her period starts is day 1. So, you likely had sex just a bit early. Even in the best of cases, the odds are only about 1 in 5.
Wait until her period is due. If she misses her period, test. Testing early is not reliable and will give a "false negative."
The tests look for a specific hormone made by the embryo and it takes some time for the level to build up enough to test. If she does have to test, use her first morning urine as it is more concentrated and more likely to show a positive.
Good luck.
Sperm can live about 5 days. The egg, only 48 hours after ovulation. She'd likely ovulate between days 11-16 of her cycle, the day her period starts is day 1. So, you likely had sex just a bit early. Even in the best of cases, the odds are only about 1 in 5.
Wait until her period is due. If she misses her period, test. Testing early is not reliable and will give a "false negative."
The tests look for a specific hormone made by the embryo and it takes some time for the level to build up enough to test. If she does have to test, use her first morning urine as it is more concentrated and more likely to show a positive.
Good luck.
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