Hello, On 5 september me and my gf were fooling around in between the heat of movement i rubbed my p***s on her v****aand  did cum in her panties even also we clean it off with paper her periods are supposed to come on 16 and now its 18 it dosent come why her periods are late plss tell we both were really tensed does this activity cause pregnancy or is this is due to hormonal imbalances pls help.