Late period 😫

Hannah

Almost 2 months late. I’ve been having cramps that come and go, I’ve also been having sort of thickish creamy discharge, my back has been hurting and I’ve been super tired. also been nauseous. I have a doctors appointment for Monday afternoon. I took a pregnancy test about 2 weeks ago but got a negative. I’m also prone to ovarian cysts, I’ve had surgery once already to remove one. Could cysts make you 2 months late?