Postpartum hemorrhage is excessive bleeding following the birth of a baby. About 4 percent of women have postpartum hemorrhage and it is more likely with a cesarean birth. Hemorrhage may occur before or after the placenta is delivered. The average amount of blood loss after the birth of a single baby in vaginal delivery is about 500 ml (or about a half of a quart).
You can do a medical abortion at home until the 12th week of your pregnancy. More scientific information: Medical abortion has been shown to be effective through the first trimester (12 weeks) and has been successfully used during the second trimester.
Based on your question, you are one or two weeks overdue (late for your expected period by one or two weeks). Which means you are around 5 to 6 weeks pregnant. Medical abortion (with the help of pills) is definitely possible till 7 weeks of pregnancy. However, let me give you some very clear advice. First and foremost, do NOT attempt this without being under medical supervision.