I took plan b last Saturday (May 21st) after I had unprotected sex (heat of moment) he did not ejaculate in me but I still didn't want to risk the chance of pregnancy. I recently got off depo for various reasons and believe that I had period May 6. I'm very nervous because I think I had sex around the ovulation days. I took plan b 45 minutes after intercourse. Since Thursday I've been feeling nauseous, bloated, and crampy (not period cramps). I'm really hoping these are side effects Plan B. Are these early pregnancy signs?