Is it possible to get pregnant during period with unprotected sex? on pill 28 day cycle and 5 day period.

Sometimes yes: Sometimes a woman can get pregnant right after her normal menstrual period if she ovulates about 2-4 days after having sex. The sperm from having sex during the last day or two or her period might be in the right place at the right time a few days later to catch that egg as it pops out of the ovary. Thus, couples who have sex should always be ready to raise a cute little surprise baby.