You need to return to the United States prior to the expiration of your re-entry permit. Once in the United States, you can reapply for a re-entry permit. Remaining outside the country can lead to a determination that you abandoned your residence. This means you would have to go through the immigration process again. You will likely not be able to apply for naturalization right away. You may be able to file an application to preserve residence upin your return but it is not retroactive. It may not even be applicable depending upon more information about your husband's employment. I encourage you to consult an attorney.
Answered on Jul 25th, 2016 at 2:53 PM