Work travel

I'm 34 weeks and my husband travels at random for work. I had planned to have him tell his job no traveling for the last 4 weeks, but he already has a job scheduled out of town in 2 weeks.

Things with baby #3 are getting real and I don't know what to do. I'm getting nervous that I will be home alone with 2 kids and go early... This is irrational because both of my other two were 5 days late, but not having him here makes me really nervous. Now, I feel bad having him tell work he can't go on any overnight out of town jobs and he needs to be within 2 hours of the hospital (I know...I know...they will understand). But I need him here.

What do I do?!