My SO and I had unprotected sex on the 1st, 3rd, and 5th of March and he pulled out. On the 11th of March, the 4th day of my cycle, I got the Depo shot for the first time. We had unprotected sex again on the 13th, 14th, and 15th and he finished inside of me all 3 times. I know it was risky and that no birth control is 100%, it just kinda happened and I was, and still am, perfectly fine with it. Yesterday afternoon, March 18, I got sudden cramps in my belly and lower back. It's stupid that I'm actually considering this possibility, but my mind jumps places frequently. Should I be safe? Could I be overreacting? I'm only 15, advice would be very much appreciated.. Thank you ladies!