Can a woman get pregnant the day after her period ?

Yes: First, timing of ovulation varies and sperm can live for a week in a woman's body.

Ovulation: If she is ovulating in her cycle then. Fertility is all about ovulation, not about when your period is. Every female must solve this little mystery so that they can have confidence in their body and know when they are at risk of pregnant. Sperm deposited in the vagina on the five days leading up to ovulation are the sperm most likely to cause pregnancy. When do you ovulate?

Depends on: Cycle and period length, you ovulate 14 days before your next period and you can be fertile for =?- 3days around that day, do the math.

Not likely: A woman menstruates 2 weeks after she ovulates, so if you are regular in your period, than it would be unlikely for you to get pregnant a day after. Important to use birth control (and condoms for sti protection) if you do not ant to get pregnant. Best wishes.