Confuzzled---- I am so sorry for the situation that you are finding yourself in. It will be a rough road, but your child is an amazing gift that will bring you so much happiness.
Your relationship however, could be a different story. He is acting like a selfish JERK, even for a so called "worldly" person. If he is talking about his next relationship, he is not acceptable marriage material. In my opinion, he is using the excuse of his "religious beliefs" as a feeble crutch to support his selfish desires.
I know that you feel deeply for him, but if it is getting harder to tell who he is anymore, and he continues with this religion, it will most likely continue to get worse. Even if that were not the case, what he said about his "next relationship" is enough to tell you that you, and your child, deserve better.
I strongly agree with OnTheWayOut. You don't need this kind of stress right now. You will be able to fall in love again, with someone wonderful. Demand better for yourself and your child! DO NOT SETTLE for a person who is not putting you and your baby FIRST!
I don't mean to rudely tell you what to do, but I do feel passionately about this subject. JW men often treat their wives as if they are sub-human. I don't want that for anyone. I also grew up with JW parents, and my dad was one of the worst husbands and fathers I have ever seen. And he is MILD in comparison to some of the other fathers of some of my friends and acquaintances.
I hope that you will be able to sort this out. I know how it feels to love someone who does not care for you the way he should. It lowers your self esteem, you start thinking that you cannot get anyone else. This is NOT TRUE! There are many GOOD men out there. Hold yourself to a higher standard, and you will be likely to find someone who holds themself to a higher standard.