Most Helpful Guy
Long distant relationships are the hardest I think you have already made the right decision you have invested a lot of time and money in your career path as well it is one your family and friends have given you support in for you to take that path.
And made sacrifices for you to be where you are.
If you are to be having children then your support base is so important and not having your family and friends around you will be the hardest thing you will face, particularly being in a foreign country. Don't sell your self short one thing I know especially with children and as a MD you would know is that they thrive when you are happy.
Your career path should be as important to him as much as any other part of your relationship and your happiness should be his greatest concern because that's the role of a husband, you need to be where you are most happy he may be your first and that is special to you but that doesn't mean you should give up everything, you deserve a lover who will climb mountains and cross seas for you.