I suffer from the same problem. There is a hormone called prolactin that kicks in when a woman becomes pregnant. Sometimes, this hormone level increases for no apparent reason- such as in my case. I was on a drug called Dostinex for a year; that solved my problem. Some women have to take it for life, though. I would take a pregnancy test just to be on the safe side, but the discharge does not mean that you are definitely pregnant.
Good luck.
Margaret

THANK YOU VERY MUCH. your very helpful

I have irregular periods and I have been having unprotected sex. Yesterday I went to the washroom and there was a little bit of blood. I figured I was getting my period, but the blood wasn't much and had stopped late lastnight. Could I be pregnant?

Unfortunately, only time and a pregnancy test can tell you if you're pregnant or not. Sorry I can't be of more help.