... my period it is sometimes clotty. This time around I only had 1 day where there was menses although it was very clotty, hardly liquidy at all. I am sexually active and I have never had unprotected sex but I realize even the pill and condoms aren't always 100% effective. My question is, could it be a possibility that I am some how pregnant and that is why my period was extremely clotty and only lasted one day?