I just started a new birth control. I ve missed it by a few hours or even the next morning. I had unprotected sex and used plan b. I ve had condoms break. My period was late. I took s test 3/4 days after I was supposed to get it and there was a faint positive line. I got my period today with lots of heavy cramping and a sick feeling. On my tampon there was a gray fleshy mass. I ve never shed my uterus lining and it doesn t look like that s what it is from pictures.