I started my period on April 8th - April 15th, I had unprotected sex on April 28th! I read that this whole " I think I'm pregnant" feeling could be just in my head, but I need some answers on if I'm suppose to feel after the conception (if it happened). I have been having pains in my abdomen like I'm going to start my period but there is no spotting! If I should test, how long should I wait... I don't have my period regularly! Thanks!