Don't take wet dreams offensively. It is a normal male thing to keep the sperm fresh and healthy. Maybe since you've had the newborn, your sex life has changed a bit. Babies can give a lot of stress and sleepless nights at times. He may not always be in the mood because of this. Try telling him that even though you do have a new born, you are still horny as ever and ready to go. He may not be aware. Also, initiate sex at times when he is not tired. Say when he gets home from work in the evening, don't even bother. Him saying he's not in the mood doesn't mean he doesnt want it, or that theres something wrong with you. Not being in the mood could just mean he's really too tired. Try it on a saturday or sunday morning, or even a sunday night when he has been relaxing all day. If this isnt enough for you, try meeting him half way. Tell him you want to have sex with him, and in exchange you'll do all the work. If that doesnt work then you need to find other ways to please yourself. You need to respect his wants and needs too.