Ovulation and sore breast.

I'm wondering since I have Pcos ( im not sure when i ovulate) and I just had a 2 cycles on time that every time on the 10th and 14th day after my period, my breasts would soreee so bad and it's painful. I was thinking this might be a sign of my period but. It's really early to say it is since i have sore breast usually around 3 days before my expected period.last 2 cycles were diff.  Can this be that i was ovulating at that time?