Dear Doctor, This Is Priya Past 2 Years Am Suffering

Dear doctor, this is priya past 2 years am suffering from irregular periods. I get my periods 2 months once only. And i got married in the month of june but still the problem is persisting. my last periods was in the 2 week of august and till now i dint get my periods yet. my husband bought me a pregnancy card to test whether it may be positive.. But i got negative result only. also i get pain frequently near abdomen . What it could be.. Am really confused. Whether it will be a problem to get pregnant when i get my periods 2 months once. please reply