Would you get pragnant having sex hours before your period was due and got it still ?

Probably not: Unlikely, but it's still possible. Use a birth control method or plan b.

Ovulation: No. You get pregnant from sperm left in the vagina on the five days leading up to ovulation. Not during the days leading up to menstruation. Do you need to spend fifteen minutes reviewing your health class lessons and to learn that periods are not the key to fertility, but that ovulation is?