Miscarriage?

I think I just had a miscarriage. I was about 2 weeks late from my period-- but I didnt really want to take a test yet, because i always take a test and then either I start while i pee on the stick, or its negative. I had a strange feeling like I needed to take a poop, very badly. I then began hurting in my stomach. I got off the toilet and there was blood everywhere, i began to bleed on the floor. I went to get into the shower and left a huge blood drops everywhere. I stood in the shower for a good 30 mins. Cramping terribly and just having blood coming out and clots. Did i experience a miscarriage? I'm in a lot of pain, should I see a doctor? It was so early, i dont feel the need that i should. I dont know. Im so sad.