Quoting Mðmmå Çhï¢lê††ê~ 1dpo:" This cycle could be different enough that you get painful breasts before your period. Or you're just ... [snip!] ... After you O, your body produces progesterone and that makes your breasts feel fuller/heavier/painful. (If I remember correctly)"
Yes that is what it does. I never used to feel my breasts before my period. now I do. It's not every cycle I feel them either. Like this month I don't feel them at
all and last month they hurt like bitch. I don't know if it's cuz I'm skippin ovulation and doing it every other month but my body never does the same things every month. But GL OP, hope things work out for you this month and you get your BFP!