Help please

Okay this is the first time. My period has been this irregular. I had two periods almost 2 weeks apart in February and now my period is late. I’m having cramping and symptoms of starting my period. But nothing I have a history of ovarian cyst but was never diagnosed with PCOS because the doctor said it was only two and they were very small and I will still getting my periods. I took a test yesterday and thought I seen a very faint line. Do you think this could be PCOS or signs of pregnancy?