Period type pains after the birth of your baby are normal and are caused by the contraction of your uterus as it returns to its pre-pregnancy size and tone. It is normal for these pains to feel stronger when you breastfeed your baby due to the effect of hormones released during a feed, causing the uterus to contract.Any severe after pains can be treated with paracetamol. Make sure you read the label, and speak to your local pharmacist if you are unsure about this medication.If you are experiencing any symptoms of infection with your after pains see: