I got missed periods for 1.5 months then after blood bhcg and home test I got negative test. I took regestrone to get periods as this generally works for me but haven't used this for getting periods like more than 1 year. I took this for three days and then my periods came after another three days but they are not of normal flow but very medium and bright red and on end of second day it is now brown . I also have pcod but my weight is maintained . Is there something to be worried about as periods flow is very less (hardly one pad a day)