Thanks for writing to us.
The delay in your periods are likely to be due to a hormonal
imbalance caused by the polycystic ovaries
. Since the pregnancy
test is negative, pregnancy is ruled out. You can get the treatment from your gynecologist.
I hope this information has been both informative and helpful for you. You can consult me again directly through my profile URL http://bit.ly/Dr-Rakhi-Tayal