Am I being unreasonable?

I feel like my husband is really letting me down.  I'm 37 weeks pregnant with our second baby and he hasn't made any attempt to change his work schedule.  He flies helicopters and they told him at work that he could opt out of flying till after the baby is born in case I go into labor while he's at work, but he won't.  Tomorrow he's going to be on a training flight roughly 4 hours away, and it's really bugging me.  At this point I feel like I should just leave him a note on the fridge that says "went to hospital, in labor...see you in a few days."