If you are irregular can get pregnant during the last days of menstruation?

While it is possible to get pregnant during the last days of menstruation, it is less likely than on other days of the menstrual cycle. During menstruation, the lining of the uterus is shed, and the body is not preparing to receive a fertilized egg. However, if ovulation occurs early, it is possible for sperm to survive in the reproductive tract and fertilize the egg. If you have irregular periods, it is important to track your cycle and use a method of birth control if you do not want to become pregnant.