Advice please - waiting for ultrasound

I have been referred for an ultrasound after having abdominal/pelvic pain with constipation and lack of appetite. I had an initial blood test and faecal sample which came back normal so they’ve said it could be an ovarian cyst.

The wait time is 4-8 weeks for the scan but my pain is getting worse and I’m getting more symptoms like needing to wee more often and indigestion.

Do I just have to stick out the wait or should I contact my GP again and say I’m feeling worse, is there a way to accelerate the wait. I’m very worried.