Can Microgynon Be Substituted As It Causes Mood Swings And Period Pains?

i am currently taking microgonym for contraception reasons. i have been taking this for over 2years and my mood swings and period pain has just got whorse and whorse :(. i have been told there are contraceptive pills which can enlarge your breasts as a side effect and with having really small breasts i would love anything to try and help. i cry at the embarrassment of how small they are. and also i want to be protected but this period pain and mood swings is really annoying me. please help.