Im a 21yr old female. I think I had a miscarriage last week due to a late period and extreme stomach and back pain. I thought it was my period coming but it was a very watery blood not like the usual. A huge mass came out of my vagina twice resembeling a huge blood clot. Then following those smaller stringy ones came out and all the pain went away. I am usually a cold person all the time so this is unusual. Is this because of what happened last week?