Should I call my Obgyn?

My period is currently 39 days late . I have had some light cramping, sore breast and nausea for the previous 2 days and I woke up this morning with some light spotting . I was happy thinking my period had finally came. I checked 30 minutes later and there was nothing just some discharge. I went to the rest room maybe an hour later and the light spotting started again and stopped about 15 minutes later. It’s been about 2 hours and no more spotting has occurred.I have pcos and endometriosis but I have never had the irregular periods until now . I don’t want to waste my time making an appointment for my doctor to tell me the same thing she always tells me .