No one can say how many meetings are right for you other than you. You'll know if 3 feels right. If you feel edgy or cranky then you probably need more meetings. Right now 3 is better than 0.
It's great that you are excited. Try not to let your hub's feelings bring you down. It's your health and sanity that's more important than his snuggly time. I don't mean to sound uncaring by saying that, but it's true. Perhaps you can have a comfortable talk with him about your needs and wishes with regards to sobriety and AA and let him know that you DO care about his feelings, but it can't come in first place before sobriety. It took my husband a lot of months before I felt like he really outwardly supported my efforts, but it happened.
It sounds like you're already making good plans for working the meetings into your week. Keep it up.