How to persuade my doctor to do a membrane sweep?

I'm 39 weeks 2 days, my husband is a fireman and is going back to work Sunday where he could be sent out to a fire and be hours away if the baby decides to come early or on his due date. This never made me nervous before but today it is. We have a doctor's apt and I really wanna try to sweep and see if it works for us but I'm nervous my doctors office will turn me down. Any suggestions?