There are many causes of sterility
like tubal factors , ovarian factors , uterine factors etc.Tell your partner to go for semen analysis
, you should see a gynec who will get your USG , HSG done and start the treatment . Infertility
is considered if both partners are living together for a year and still not able to conceive.If your test is negative then most likely you are not pregnant , PCOD
is the most common cause for delayed periods and for that an USG is must.