i need some advice for my friend.She recently had her period late last month around the 24 or 25 & this was after she missed it for 2 months.she had unprotected sex last week on the sixth.could she be pregnant?since she didnt have a period for 2 months i would assume that she didnt ovulate those 2 months.if there is was no period in october how can she calculate this month's ovulation date?is pregnancy at all possible