On Saturday night July 8th I started what I thought was a completely normal period before bed. The next day while going to the bathroom to change a tampon I urinated, wiped, and there was a strange piece of tissue that came out of me. I'm used to clots but this has never happened before. It was a few inches long tapering from larger to smaller starting at about a half inch at the top. I tried searching the internet and I didn't find anything indicating that I was in danger but I'm still worried. I read that this happens to a lot of women. Any advice on what it was?