feeding question?

Our baby is one month old and doing well with feeding. My mother-in-law came last week, and helped us so much by feeding the baby during the night so that we could sleep. My have been severely engorged every morning, so I have been pumping 2 bottles, not only for relief but to have additional expressed milk for night feedings since my husband wants to help too. My are huge and in immense pain every morning. I know this engorgement will eventually subside, but has anyone else had this issue? And if so, how long did it take? I don't want to develop an infection. Thank you for your input!