I got my first depo shot in January, my next shot isn't due until the 31st of March. When I got the shot my period and spotting didn't start until like a week later. My boyfriend and I had unprotected sex twice during spring break. I've been feeling gassy, I'm cramping, and I'm kind of bloating seems like I'm kind if gaining weight. Could I be pregnant? Or are these just side effects of the depo shot?