Having a baby represents a big change in a couple. You know each others as partners but not as parents yet. Sometimes, it is very unpredictable how you or the other will react after the baby is born.
Also, you never know who your baby will be.
My baby was very challenging. He never slept the promised 16 to 20 hours a day and cried a lot and for long months.
For this reason, I was happy I was in my own town at the time. Dealing with the baby was hard enough and I was glad I did not have to get used to a new culture at the same time. I was in my own environment and despite all this, I was feeling really alone.
Now you might have a baby similar to those described in the books and I wish you so. In this case, you're wife might be more happy to build her network of moms and habits with a new born. Every one talks to you when you are pregnant or carrying a baby wich in some case can lead to social opportunities.
Should the baby be a sibling, I would rather do the move before the baby is born. I'd rather build my nest where our family has decided to settle. Dealing with a move can be stressful and having children to look after on top of it can be overwhelming.
It is not an easy decision to make.
Some additional point you might want to consider could be:
- would you have family/friends to help you on both sides or only one?
- what is the temperature like in both places when the birth is due? I was glad my baby was born in summertime. It really makes your life easier to be able to put nearly no clothe to a new born when your not yet very comfortable with tiny baby clothes.
All what was said regarding travelling with a little one is also what I experienced. We crossed the Atlantic when our baby was 4 months old and it was pretty easy. Then it was complicated especially when he could not walk yet and wanted to discover and touch pretty much everything. Then it was fine again around 2 years old. I keep a very good memory of a 30 hours journey (3 planes and a boat) when our son was 2 1/2 years old.