I had my son Jan 2016 and since then my periods were consistent for a month or two then I would skip…

I had my son Jan 2016 and since then my periods were consistent for a month or two then I would skip a month get a period then be super late even when I took the pill so I stopped for awhile taking them . I'm now completely off the pill since I wanna say 2 months now I got a period the day after Christmas and missed January , I have the "clue" app where I have tracked my cycles according to it my period was suppose to start yesterday never came and I've been emotional , bloated, cranky & cramping lately . I've taken a test 2 weeks ago and it was negative I have one more idk if I should take it . Or call my doctor to go back on the pill to regulate my periods . Help 😩