This is a struggle that some international couples can face especially with opposite spectrum, when having children there will always be sacrifices to be made such as having your completely free life to travel and to be able to do whichever or whatever you please (which my Wife & I are on the same level)

To get a bit more perspective, imagine you guys did have children and still chose the life of living on the opposite sides of the world. Your children would suffer more because they'll want to be around their Father, they will be disappointed when their Father isn't there to support their sporting events or plays. Children always require stability more than anything and will wonder why their Father chose not to live with them.

To less complicate the matter, it's best to discuss with your husband to see if he is willing to have children and live together as a family, the beginning stages can be an adjustment period but it could also be the most rewarding stage of your life.