Yes, especially if you mean that you missed your next three pills after the unprotected sex. Whenever you miss two or more pills in a row, your hormone levels change and can allow you to ovulate. If it hasn’t been more than five days since the unprotected sex, take the morning after pill (Plan B) to reduce your risk of pregnancy. Also, be sure to make up your missed pills. Take two pills a day until you are caught up and then resume the one pill daily schedule. In the meantime, do not have any more unprotected sex. Use condoms for the next seven days after your missed pills.
If you only missed one pill three days after the unprotected sex, the risk of pregnancy is a lot lower. However, sperm can live in a woman’s body 3-5 days, and if you happened to ovulate (unlikely but possible with one missed pill) on or shortly after your missed pill day, pregnancy is possible. Hopefully, you took your pill as soon as you remembered and then took your next pill at the regular time. Use of Plan B is not needed if you missed your pill by 24 hours or less. However, missing any pills or taking them late decreases the effectiveness of the pill, and thus increases the chance of pregnancy.
If you miss your next period, take a pregnancy test.
13. February 2012
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