Is it a burning stinging kinda pain? I had this after my Sx just above the pelvic bone and at the base of my incision. Turned out to be a small hernia. It protrudes a little now and occasionally still stings but isn't affected one way or another by passing gas or bowel movements. If it gets worse or you notice a change in your temp, bowel coloration or pain level I would probably go to the ER rather than waiting till Monday.
Hope you feel better soon.
Dx'd Jan'06, 1st Resection 7/06, Predinsone, Humira, Imuran, B12 injections, Nexium. Secondary conditions: Psorasis, Acne, Fatigue, Joint Pain, Lactose Intolerant, gallstones, fibroid cysts, peri-menopausal.