so my boyfriend and I had sex about 3 times in Sept. and 4 or 5 time in oct. it was unprotected all the times we had sex. I haven't had my period for Sept or Oct I been feeling like I am pregnete but there other days were I don't feel like I am. he precame in me most of the time I want to know what are the chances I could be pregnant and when should I take a test?