Going to Japan and suddenly my husband doesn't want to go anymore.

My husband (32M) and I (32F) were going to go to Japan and Korea in a couple of months. We have been planning this for a year and our tickets are already booked. We both love Japanese things and even speak a little Japanese.<br><br>We have a boy and a girl (both 5 and under) that are going on the trip as well, so we figured it would be a good idea to bring a nanny as well. This would be the first time we have travelled with a nanny, but figured it would be worth it. <br><br>We recently interviewed a few nannies, and found a great one to go on the trip with us. Now my husband doesn't want to go. He says that he is too stressed out over money now. How does that make sense? We already have the tickets and a hotel booked. This is a trip of a lifetime and I'm starting to regret marrying him if he's going to give me so much grief over something that I want to do. I've been planning this for years, and he just agreed to it. Now he doesn't want to go anymore? What do you think?