When will most drs let you get a sweep?

Allison

At my next appointment I’ll be 38+3 and want to ask for a membrane sweep😬 I was at a 1 at 36 weeks but did not get checked my last appointment, hopefully I’ve dilated more but I know they can preform the sweep at a 1.... so wondering if most drs will do it at 38 weeks or make you wait longer?