I delivered in 10/29/11 and I am still bleeding a lot and I have a lot of abdominal pain and headaches with the pregnancy I had preclampsia? Help

Need to be seen. Although, some women (the minority) may have some trailing bleeding after delivery for up to 6 weeks, most will become "dry" 3-4 weeks after. Since it's been over 4 weeks for you and you have pain with it, I recommend you go back to you obgyn and have him check you. You may need an ultrasound to make sure there is no retained placental piece in your uterus or infection.