How will i know when its "go time"?

My husband works 3 hours away from home 4 days a week. My biggest fear is that I won't know it's real labor & that I won't want to call him from work for false labor. I'll be 35 weeks on thursday, so tecnichally it could be any day, though I hope it won't be for a few more weeks.

I just worry I'll be like ohh it's just braxton Hicks again. Then by time I know it's for real, what if he's like only halfway home & he misses the delivery :( I'm so afraid of this happening