Thanks for the query.
You better go for blood test
for pregnancy and ultrasound
which will rule out the possibility of pregnancy.
If the test comes negative, you can go for withdrawal bleeding with medroxyprogesterone
And can start metformin in case of features of PCOD in the ultrasound.
Along with these you can go for ovulation induction
with your doctor's advice and can plan intercourse around that period which will increase the chances of pregnancy.