Have any of you made a code word to let whoever is with you when its time know ITS TIME?

My fiance works Mon-Fri from 5am-5pm. Its our first, so I don't have any clue when or how things will happen. He works about an hour away from his parents house (where we stay) and the hospital is about the same distance. We stay out in the country so an ambulance probably would not make it in time.

Fiance is my ride to the hospital. If its during his work time, the only people that will be available will be his pregnant older sister (she's a few weeks behind me) and his 16 yr old brother who has no license yet. And fiance and his dad have the only vehicles so if they're gone, we're screwed for a ride.

So, my idea was to make a code word that we can use in an emergency or when its time. So, we won't waste time on the phone or in the event he can't answer a phone call.

He can always answer a text.

I got the idea from the movie Juno lol