cat with newborn?

So I'm 5 months pregnant and I have one cat. Hell be a year and a half when I give birth.. I'm just not sure how he will handle the change? He is VERY clingy to me. I've never had a cat that was so attached to me, I call him a little dog lol! He is really responsive to me and he comes for car rides with me etc. I'm worried hell be jealous of baby? As of now, HE is my baby lol I just don't want him to feel hurt. He's a big part of my life and I want to know what I can do to make him feel comfortable :)