Breast pain TMI

I am absolutely miserable ladies. I am a FTM and 30 weeks today. This morning my breast were very sore, so I was pushing and rubbing on them to see if that relieved some of the tenderness and realized I was leaking. I havent leaked before today. I know its all normal and a good sign, but they just hurt so bad. Is there anything I can do to relieve the pain without compromising my ability to build a supply? TIA