Hi Shilpa
Postpartum bleeding can continue till 8 weeks of delivery . If it is persisting beyond 8 weeks you have to meet the doctor . Regarding normal periods it varies between individuals and how you are breastfeeding the baby . If you are doing exclusive breastfeeding , your periods will come later. There is a chance to get pregnant even if you didn't get your periods , you are breastfeeding . Taking proper contraception is very important .