i finished my period about five days ago and about two days ago i had sex with my boyfriend. we hadnt done it for a while, and when he first put it in, it kinda hurt. after that the rest was fine. after that i wiped and there was blood. and now the blood keeps coming. its not like a period though. its like brownish/red mucus that comes out only sometimes. and gets all over my underwear. its all blotchy. is this a pregnant sign? or is something else wrong? or am i just freaking out for nothing?