I'm not a doctor, but have read that leakage from your breasts if you are not nursing COULD be a sign of something serious. Some kinds of cancer can cause this. It probably is nothing or maybe the birth control change could cause it, but you can never be too cautious, only your doctor would know. My grandmother died from breast cancer because she was too embarrased to tell her doctor that she was noticing things that were abnormal.(I don't know if leaking from her breasts was one of them, but I did read about it after she was diagnosed. I didn't breastfeed either and did have some leaking, but that stopped by 1 year after my daughter was born. I don't want to scare you, but it's always better to be safe than sorry.