I am 19 years of age. I believe I had a miscarriage on christmas eve. I thought it was my period at first because I always have really bad cramps but I was bleeding a lot more than usual. The next morning I woke up bleeding a lot, and something grayish came out followed by blood clots. I called my mom and she told me what she thought had happened, which was me having a miscarriage. She told me if it already came out then there's no reason to go to the doctor there's nothing they can do. I've been bleeding since then and just stopped yesterday morning, but me any my boyfriend have had sex yesterday and today and I start bleeding again every time and then it stops in a few hours. Should I be concerned? Is this just my period?