I had sex last wek and I started bleeding after It only a small amount thou then tonight my bf poked me off and I came home and I am coverd in blood some help me I'm soo worried I am no due on my periods and the amount of blood was unreal and it really stung afrer I done a pee this has never happned before with my other sexual partner I am not pregnant and I am on the pill if that is any help just someone please help me