I started my peroid last month on June 19th and I had unprotected sex on the 7th of July and on the 14th of July. I started spotting on the 18th of July and stopped by that night then on Sunday the 22nd of July I had really bad cramping and heavy bleeding with clotting I don't usually cramp so bad and heavy bleeding doesn't start until the third or fourth day, but I still have no clotting when on my peroid. It lasts for seven days and it comes every 28 days. Is there something wrong with me? Do I need to find a Doctor or is this just all in my head?