Quick question!

Have any of you requested to have your membranes swept? I have an appointment Thursday and I will be 39 weeks 3 days and I'd like to request to have my membranes swept. Is that out of the ordinary to request? It's my second child and my first was born 2 weeks early so I never had to really put much thought into this type of thing before. Just wondering if I'm going to get a funny look from my doctor lol.