Quite a few of the expatriates we hire here come ahead of the family (from a few weeks to a few months depending on personal circumstances) and in my experience this has been preferable as it gives the person time to settle into the job and the company without feeling torn between being with the family as they settle into their new life and being very engaged in the orientation process which for us can mean some travel in the first month.
As others have said, your husband will be a 'prospect' in the eyes of some women but if you trust him you'll both be OK. After all, his work may involve travel and then what happens, do you worry about what's going on then? Put your family first at this point and work through this together. As for all the warnings, take them with a pinch of salt if your marriage is solid.