What should I do..?

So I’ve always had irregular periods when I was younger. But when I started the pill at 16 it was normal with a 35 day cycle even after not taking it for 3 years. I’m on day 70 on this cycle.. took a pregnancy test at 45 days and 55 days which both came out negative. Do you think I should do? Call a doctor? Take another test? Just wait it out?