If you're fine with the schedule you're on, then all good, but seriously, IVF is no good reason to induce. And obviously he doesn't think it's necessary if he's only pushing you back to accommodate his holiday. Sorry for the rant here, but it gets my goat when IVFers get this sort of treatment. You increase the risk to your baby by getting induced without a good medical reason (and post-dates = 42 weeks, technically).
It's your body and your baby - so your call.
I'm sure there are other BBers around who've had FIFO hubbies and can tell you how they managed things. It would certainly be good if he could be there - I hope you can swing it so it works well for you guys.