I've discovered milky white secretion from breast after my husband and I had intercourse. The fluid came due to pressure on breast. I am not pregnant neither there is any abnormal lump on my breast or inside. I am really worried about this sudden secretion as it seemed abnormal to me. But it gave me no pain. I've non-classical pcos and I am afraid if there is any hormonal imbalance in my body. What can be the causes of this secretion? Do I need to go for medical examination? I am really worried and confused. Please help me by providing relevant information.