I was really wondering about this kind of situation because I do get some pains from the ortho cylen pills because the hormones pills are really strong for me .. They only make my breast develop more than it already was. Everytime I would take it.. It would increase a couple size bigger, and I just don't really get it though. I know that some of you never experience this but if you have.. Could you please let me know. My breast stopped growing when I wasn't on the pill but then it start growing because im on the pill now. What is the big difference between estrogen pills and stuff like that. I dont know .. I know this is confusing. Please help me out a little. My dr did say that some girls vary of receiving a change in breast size. Im one of them.