So I first got the depo shot on Feb 13th, haven't been sexually active until May 9th. That's the same day I got my 2nd depo shot. I've read that you should get it within 12 weeks, that's right at the 12 week mark, one extra day. It was unprotected sex. I've had unprotected sex several times in the last 3 weeks and had to take antibiotics for a couple days. Lately my stomach has been bloated and I've been feeling more hungry, having to go to the bathroom more, headaches at night. The last couple of days I've had a light brownish discharge. Also note that I was bleeding for at least 2 weeks when I finally got my second shot. I'm starting to get a cold now, but that could be because of my roommate getting one. So should I just stay calm and wait a couple more weeks, or could these be signs of pregnancy? I'm just not really sure.