What Causes Milky Discharge From Breast After Periods?

My name is Anusha iam 22 years old, i married recently 4 months back. from past two days iam getting milk from my breasts I dont have any pain. My menstural period stopped 1 week back. With this problem Iam unable to have sex ith my husband please do help me. generally when does a women get milk from her breasts?