Me and my significant other were having sex and in the middle of it, he stops and says "Baby, There is blood everywhere." I think its the start of my Period. I put a tampon in and checked it after I went to the bathrrom almost 15 hours later and no blood, now its been 3 days and still no blood, I was cramping really bad for the first two days. Im not on the pill but me and him do have rough sex from time to time. HELP PLEASE!