Your best bet is to just return with your husband together on the same flight.
best-case scenario, you get welcome back with no questions asked
Probable scenario: You'll be asked how long have you been outside the US, explain the situation, get a warning from the officer and be told if you ever want to stay outside this long, get a Re-entry permit Before leaving the US. But still, get admitted.
An unlikely scenario, Sent to secondary inspection and questioned about ties to the US. If you've filed your taxes, have a driving license and bank accounts here, bring all these to show proof you're still tied to the US and the trip abroad was temporary
Worst case scenario, they'll ask you to surrender the green card, which you can refuse and they'll send you to see an Immigration Judge (highly unlikely)