My boyfriend and I nearly did it unprotected. He stuck obviously it in, but I told him no and no cum etc went into me. However, a couple of weeks on and I have severe constipation. I haven't been to the toilet properly in perhaps a week. When we foreplay etc, I always bleed. I'm only 15 and I am so scared in case I am pregnant. I just feel like crying. And if I am.. I dunno what I'm gonna do .. Do you think I should be worried? Or is this simply just constipation?