I and my girlfriend induldged in a foreplay on the 20th of this month.. During the entire act she had her underpants on and it waz als quiet wet and I als rubbed ma penis against her pants few time but we didn't have an intercourse and I didn't evn touch her vagina but her periods wer due on 21st of this month and she hasn't got her periods yet... Can she be pregnant... We both are worried.. Please help..