Sperm and Egg

How You Get Pregnant – The Bare Bones Basics

It is surprising how many women do not fully understand the mechanics of getting pregnant. For the majority of women, their menstrual cycles are 28 days long. Menstrual bleeding is only the beginning of the full cycle. The length of your cycle is determined by counting the number of days between the first day of bleeding until the day before you start bleeding again in the next month. In order to get pregnant from unprotected sex, you have to have sex around the time you are ovulating. For women with a 28 day cycle, ovulation usually happens around day 14 or two weeks before your next period starts. The possibility of getting pregnant is present if you have sex during days 11 to 15 of your cycle.

Let’s take a look at what really happens in a woman’s body. In general, an egg is released into the fallopian tubes at ovulation. This happens at about 14 days after a woman’s period starts. The egg will travel to the uterus (or womb), and can be fertilized anywhere along the route. The life of an unfertilized egg in the womb is a short one and in the absence of sperm will begin the process that leads to menstruation.

Having Sex During Your Period Can Result In Pregnancy

While uncommon, it is possible to get pregnant from having sex during your period. Cycle length and how long the menstrual bleeding lasts can play a part in an unexpected pregnancy. It all comes down to a numbers game. Women usually will ovulate about 14 days before their next period starts.



If your cycle is shorter in length than 28 days, there could be an increased chance of getting pregnant from having sex during your period.

For example, let’s say your cycle lasts 25 days instead of 28 days and your period bleeding lasts for 6 days. Sperm is known to survive up to 5 days after ejaculation in the woman’s reproductive system. If ovulation occurs 14 days before your period is due, it would occur on day 11 of your cycle. If you had sex on day 6 of your period bleeding, the sperm could potentially survive until day 11, ovulation day. Having the sperm present and waiting at the time of ovulation could most definitely end up in a pregnancy.

Another time when you could get pregnant from period sex is when you have irregular cycles. When a female is in the early and late years of menstruation, her cycle often varies from month to month as well. Any one of these reasons, combined with unprotected sex, makes it possible for a woman to get pregnant during her period.