Im BRCA1 positive. Im 26. I had my baby girl November 16th. Up until now ive never had any issues, but i found a lump thats semi hard and not so painful in my left breast about the same week i delivered her. Im not breastfeeding, but im STILL lactating and the lump is STILL there. Yes i have a mammogram scheduled. Both of my doctors think it could be a cyst or a clogged duct. The lump is the size of a half dollar. Has anyone else had this???