What Causes Delayed Periods With Pain In Abdomen And On Treatment For Polycystic Ovaries?

hi doctor.....its bin 84 days i got my periods.....ive got polysistic overies.....ive taken treatment n stopd now...ive done a home preg test in 60 days but it was negative..but usually il not wt till so many days...il get my periods in max 65 days...my stomach is paining n im restless...vat can i do