The menstruation ended on October 27. At 6 a.m. on October 30, I ejaculated in vitro. On November 1, I took contraceptives. After two days, there was withdrawal bleeding. I was worried about whether I would get pregnant
What is the first day of your last menstruation? All ovulation periods are calculated from the first day of the last menstruation, not the day after the end of menstruation. According to your situation, if you take emergency contraceptives, the probability of pregnancy is not large.
If menstruation is normal at ordinary times, it is relatively one week before menstruation and three days after menstruation. During the safe period, the probability of pregnancy is relatively small. Emergency contraceptives are not effective within 72 hours after the same room, and the earlier they are taken, the better the contraceptive effect. If they are taken within 24 hours after the same room, the contraceptive success rate is more than 90%.
If you ejaculate in vitro and take contraceptives after menstruation, it will not lead to pregnancy in this case, because the three days just after menstruation belong to the safe period, and you take contraceptives again. With withdrawal bleeding, it can be determined that contraception is successful