I've been on the shot for 3 cycles now (so almost for a year), and I've bled ever since I started the shot in May of 2009. Then this month about three weeks ago I stopped bleeding, after having unprotected sex, then I've been having signs of pregnancy like, severe acid reflux, sore breasts, motion sickness, and weird food cravings. What's going on? Help?

Take a pregnancy test using first morning urine