Is it possible to get pregnant before menstruation

Is it possible to get pregnant before menstruation

Yes, but the chances are low. If you want to get pregnant, then it is better to choose days that coincideCalculating Your Monthly Fertility Window / Hopkins Medicine with a "fertility window" - this is the time five days before ovulation, directly ovulation and up to 24 hours after. At this time, the chances of fertilization will be highest. This variation arose due to the fact that sperm remain alive in the uterus and fallopian tubes for up to five days, and the egg for up to two.

If, on the contrary, you would like to avoid conception, then with a high degree of probability nothing will happen before your period. However, the opportunity is still there. Therefore, if you are not planning on having a baby at the moment, be sure to use effective methods of contraception whenever you have penetrating sex. It can be, for example, a condom.

Why you can get pregnant even before your period

You can count the days for years, and then face a failure and an unplanned pregnancy. So, in 221 women with regular menstruation

checkedA. J. Wilcox, D. Dunson, D. D. Baird. The timing of the “fertile window” in the menstrual cycle: day specific estimates from a prospective study / BMJ fertility for 696 cycles, as a result, only 30% of the fertility window completely coincided with the calculations, and 4-6% were able to become pregnant on the day they were waiting for the start of menstruation. It is quite difficult to accurately determine the time of ovulation, any violation shifts the window by several days, so no one can give a guarantee.

Are there exactly "safe" days for sex?

More likely no than yes. The calendar method is an unreliable method of contraception. With ideal counting in theory get pregnantFertility Awareness‑Based Methods of Family Planning / ACOG 1-5 women out of 100 during the year, but in reality - 12-24 women. This method is definitely not suitable for an irregular cycle, for those who have bleeding between menstruation and who, for health reasons, absolutely cannot get pregnant. In addition, such contraception does not protect against sexually transmitted infections.

If apart from the calendar leadCalculating Your Monthly Fertility Window / Hopkins Medicine diary basal body temperature and cervical mucus, as well as doing home ovulation tests, then reliability increases. But all this requires iron discipline and daily measurements for many months. If pregnancy is definitely not included in the plans, it is better to choose a non-calendar method as contraception.