PLEASE RESPOND!!

Carrie
I had a miscarriage feb 14. I was about 3 weeks along. I blead for a week and that was that. Yesterday I started cramping tremendously bad and then I finally started spotting. I had light spotting for an hour or so and it quit. This morning I woke up with back aches and bad cramps, I feel so much pressure and the only way I really bleed is if I go to the bathroom and just push. When I do that it just pours out like a waterfall! I've never had it do like that before... It's usually a medium steady flow.. It's like I'm stopped up in my uterus. Has anyone else had this problem with thier first period after a MC?