Sore boobs, help!!

Chloe • Mumma of 4 💙💖💙 💖Pregnant w/#5

I’ve had sore boobs for about 6 weeks now! My period has came & gone about 2 weeks ago, I had cramping also but that has stoped! I’m not pregnant had a blood test, awaiting results to see if I have PCOS! Any reason why I’m experiencing this ??