It's unavoidable, but I think I have to miss out on the birth of my child due to a business trip.
Does that upset you?
Yes, I'd be missing out on a very important event.
Cancel the trip, then. I'm sure whoever you have business with will understand.
I need to carry on with my day to day activities. It can't wait.
It's business, it can wait. I think wanting to be there for your child should take precedence.