I am sorry to hear about another situation like this. Foremost: Educate yourself completely on the Witnesses. When they speak or read to you, learn ABOUT them, not FROM them.
You will find that NOTHING they do is out-right. There is always a back door they slip into. A smile or kind word, is ALWAYS a means to "get started" with you.
The dangers of your situation: This organization abides by archaic ideals about marriage. Your husband is YOUR head. If you disagree with him or point out any falsehoods, he is within his "rights" to bring you before a council of elders. Your behaviour will NOT be tolerated, as it is his "christian duty" to instruct/correct/punish you.
If your husband becomes a fully Active JW, then I am sorry to be blunt with you... But you may as well get yourself a good attorney. Your husband will tell you that all the people on this site are people with grudges and people out to destroy Jehovah's plan. I know... you love your husband dearly... but keep reading some of the older posts and you will find so many people thought they could trust their loved ones, with their children, with their feelings, with their fragile emotions.
Dont take anyone's word for it.. here or anywhere else... See for yourself. If you take my word for it.. there will always be doubt in your mind. Bluntly ask him what he would do if you chose not to associate with JW's.... pay no attention to his answer. The elders will work him over, any loyalty he thought he had to YOU will be quickly dis-membered. He will be contstantly reminded that you are some sort of lost sheep. Their "brain washing" techniques are proven methods. They will "feel sorry" for him because his mate will not accept the "truth". It will be an emotional thing for him, and he will be made to feel that he has a whole organization (and god) on his "side", protecting him from ... YOU.