Its worth doing a bit of reading and research on this so you can be prepared and confident. Firstly its important to know that inducing babies where mum has GD does not improve outcomes or reduce incidents of sholder dystocia, it only increases the incidence of caesarean section.

Here are some threads which are in the GD forum, very well worth a read, from very experienced, world famous Obstetrician, Michel Odent and birth attendant and researcher, Henci Goer - I have never met a birth person so well versed in studies or analytical - she gave a talk in the BB centre! In fact, ACOG (American College of Ob/Gyns) does not recommend induction for big babies.

Michel Odent on Gestational Diabetes

GD article by Henci Goer

GD and Induction