I'm about three days late for my period, I have had unprotected sex a few time but it was more of a foreplay thing, we always finished with a condom. I don't feel any pregnancy symptoms at all, although I would only be at least a week or two along if I were. But honestly I am so scared right now, I'm only 18. I just don't know what else could be causing me to be so late. I really need help