Lump in breast

shae 🙃

So during my pregnancy I found a lump in my right breast and I never told no one about it.i wasn’t sure if it could be my milk or due to hormones.im now two weeks pp and I’m not breastfeeding.most of my milk is gone and the lump is still there.its hard and round like a medium/big marble.i know this may be a silly question but I honestly don’t know what doctor should I contact about this?my primary or ob ?