You and your husband will definitely be in my prayers.
Just keep in mind that your husband may never change. My entire family is anti-LDS and in spite of years of prayer and trying to "teach by example" not one of them has changed. If you truly feel that this is the Lord's true church, you must make your decision to join based on that. Hopefully your husband will at least understand your feelings, even if he can't share them. Above all, make sure he knows that your church membership will not affect your love for him. There is misinformation out there that Mormons have to turn their back on their non-Mormon family members. This is not true, so reassure him of that.
Good luck, and I will be praying for you.