Hi! My period is 4 days early today but has always been regular. I was diagnosed with pcos the beginning of this year but in June my gynecologist advised me that my ovaries were looking better and so was my lining. I am trying to conceive and the last few days have been experiencing nausea and now today all of a sudden early brown bleeding. Took a pregnancy test but came out invalid before I started the early bleeding today. What is wrong with me?