This is our second month TTC, the first month was a chemical pregnancy. I am 8 DPO today and yesterday i had pain in my left breast. They both hurt but the left is worse. Then last night i looked and it grew alot! Busting out of my bra... only in about 12 hours. I have always had one bigger than the other but not like this. Has this ever happened to anyone else??? Will they even out?? Could this be a pregnancy symptom? I don't want to get my hopes up because of what happened last time.