Long Travel Insurance

My husband works in contract work and to us that means he is gone to different countries for long lengths of time. This time as a family we have decided to stay in a neighboring country for a few months so we can see him on his weekends off. I need to make sure that I can get Travel Cover for this extended amount of time. What is the maximum amount of time that I can get a hiatus from my own insurance and get it covered by a company that is out of our area? Is there a maximum amount of covered days?