Made first apt for IUI any advise?

Karin • 27 married TTC since 2013
Husband had a vasectomy a long time ago.  Either reversal or IUI. We are going for first apt soon and I was wondering if there's anything I can do now to start getting my body ready for this? We want to get to if ASAP like everyone else I guess. I've been pregnant before so I'm not too worried about me.., but should I be doing something before time??? :)