Clumpy period blood

Natalie • Crying helps me slow down the weight to life's problems
I've never had this before but, my period blood comes out in clumps, I drink a lot of water and my period blood comes out... Clumpy... I don't want to show a picture because I don't feel too cozy.
But what's weird about that, is the fact that my pee isn't affected by the blood. The blood sinks to the bottom of the bowl in clumps and my pee remains yellow, it scares me because I'm afraid if I might not be able to have kids. I know that there's always adoption and all but it scares me. 
What if I can't get pregnant? Is there any advice I can do, or get for that matter? Im pretty freaked out by it. Should I be drinking more water? Or should I stop drinking water. I have a decent diet and there are times when I nonstop binge can anyone out there in the <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">Eve</a> would help me? D: