How long to wait to get pregnant after an appendectomy?

2-3 weeks? I would defer to your obstetrician but from a surgical standpoint i don't see why you could not get pregnant once you were sure there were no complications (1-2weeks) and you were off of the medications (antibiotics, pain meds, etc).
How soon you want. Uncomplicated appendectomy with in wk bowel fuction returns, by 3rd wk wound gets strength by formation of collagen and by 4th wk you will be ready and good luck.