Am I being crazy?

So I am 35 weeks pregnant and my husband and I both work full time. We have a 3 year old already as well. The job he works at is relatively new (been there 3 months now.) So he still works at his previous job part time to help them out and make extra cash (it’s a smaller family business.)

Part of the smaller business is construction/new build cleaning and his old boss asked him recently if he would be able to travel (and stay for two nights) to a rural area about 3.5 hours away from home to get that job done. Mind you, he has done this many times before for them and it drives me nuts. She doesn’t compensate for travel time, overnight stays, or all of the fast food he has to purchase while away.

Normally I’d be irritated but let it go. However, I’ll be 37 weeks pregnant when she’s wanting him to go. Am I crazy to tell him no? I’m so scared I’ll go into labor while he’s gone just because that’s our luck.

Furthermore, It will be in the middle of his (and my) work week so that leaves me working full time @ 37 weeks pregnant with a 3 year old on my own. I know that part isn’t a huge deal but to me it is frustrating for him to put that on my plate when it’s the last thing I should be dealing with imo.

Thank you for your help ladies, I’d appreciate any advice you have to offer me. I know pregnancy makes me a little crazy at times.