My gf told me that from a day before, white water is coming from her one breast and when she is pressing another breast, also coming watery liquid. Today is fifth day of her periods. She said some pain and no swelling and redness are there. We are actively participate in protected intercourse. She is very worrying about it. 1. What is it? 2. If she tells her family about the problem, does family know that she is activity participated in sex? 3. Is it worrying problem or not, when to see the doctor??