Hi, and thanks for your medical question on eHealth forum
You are unlikely to be pregnant as you had your periods on the ninth of this month. Pressure between the hips and sore breasts could be the sign of infection or it could be due to the after affect of surgery. It could also be due to pelvic inflammatory disease which can be diagnosed to a certain extent by an ultrasound scan too.
If you cannot meet your specialist until January, try and consult another gynecologist or your PCP until then. Hope this helps. Take care!