Possible miscarriage?

Kirstie
Yesterday morning (3-26-16) I woke up at 4:30am to horrible sharp pains in my lower abdomen and back. By 6am I was sitting on the toilet, sick from both ends and bleeding as well. My pain eventually ended at 6:300 and by 7am I was back in bed still in some pain but not as horrible as before. I went back to bed and awoke at 10 am to now more bleeding but still some slight pain. Note: I have never experienced this before with a normal period and my period was supposed to begin on 3-24-16. Please help. I do not have insurance and have not been to the doctor to get checked out but I'm still bleeding some and still having some slight pain (what feels like cramps and pressure) today and I'm just sad because I have taken 2 pregnancy tests and both were negative results..