Should i call my doctor or no

So Jan 29 2019 I miscarried and then in September I was diagnosed with PCOS. I’ve been having normally periods up til the past 37 days. I have yet to have one. I had a EGD done December 17th and they made me take a urine pregnancy test and it came back negative but now were going into January and still no period. I’ve been having food cravings and low back discomfort. Last time my pregnancy results wouldn’t show up on a urine test they had to do a blood test. So should I call the doctor or wait it out? I need help ladies! Also yes I’ve had unprotected sex the past month.