My period started on the 12th of this month, with today being the 14th, technically day 3. Today in particular, i noticed it is heavy. I changed once at work and 6 hours later i came home and the pad was filled top to bottom (sorry tmi.) When i woke up in the am, same thing with the pad. Now i've noticed that if day 1 is not much, usually day 2 is. But not day 3. And by day 4 it's quite calm without much blood. I'm going to be 41 next month, not using birth control. And my period is pretty steady at every 26 days. This is the first time I noticed this. I don't have pain, and i dont see any clots or feel them come out, but i noticed when i urinate, i see a membrane-like thing in the toilet, with the urine looking very bloody today. Should i start to worry it being fibroids? And where would on feel pain, front or back? And where exactly? Is the pain sharp or dull? Any insight would be appreciated, thanks.