Can I get pregnant on my period?
Every month, a woman releases an egg on approximately day 14 of her cycle. Prior to releasing that egg, the uterus lining will thicken and build up to be prepared in case fertilization occurs. If the egg is not fertilized within 24 hours of the release, the egg will be flushed out with the uterus lining about 14 days later, known as menstruation. This adds up to a 28-day cycle - the average cycle length. While most women follow a 28-34 day cycle with an average 2 to 7 day period, each woman is different and cycle lengths may vary. In this scenario of a 28 day and above cycle, she cannot get pregnant while on her period.
As mentioned previously, cycle lengths can vary and not every woman experiences a 28 day textbook cycle. A woman with a 24-day cycle and an average of 7-day period, could have intercourse on the last day of her menstruation, ovulate a few days later, and could get pregnant. Since sperm can survive up to 5 days, pregnancy is a possibility in this less common scenario.
It all depends on a woman's individual cycle length. If your cycle is 28 days long or above, you cannot get pregnant while on your period.