I'd really appreciate if i could get replies back to this as soon as possible. Ok, i had protected sex using a condom about 3 weeks ago. I checked it after and it seemed to have no tears. But now i'm nauseated and have a lot of discharge. My period is due but has been really irregular the past few times. And i usually know when my period is going to come because i get cramps but i havent gotten any yet... Could i be pregnant? Because accidents do happen.