I am currently 17 with an irregular cycle that last up to 42 days, plus my five days of bleeding. On the 21st day of my cycle I stupidly had unprotected sex with no ejaculation. It is the 38th day of my cycle currently and I am experiencing cramps, sore nipples (not breasts), accompanied by overwhelming sense of paranoia, as I was aware of the possibility of sperm in pre-cum. For the last few days I did not experience any vaginal discharge, just sharp cramps in the lower stomach area and thighs. As silly as it sounds. when I look at myself in the mirror I'm reluctant to relax my stomach muscles as my stomach becomes bulged (probably due to fat), adding to my anxiety. I am planning on taking a take home pregnancy test tomorrow and another a few days later to double check.

I am very worried for my future as well as my boyfriends. Can anyone offer some possible explanation of why my body is releasing mixed signals, why my period is taking so long to come, and most important of all what are the chances that I am prego?