Am I crazy?

I know these are big questions and they occupy a lot of space in your mind and thats normal, you're right in saying you should focus on the child you're pregnant with. You haven't had your baby yet so you don't really know that you wouldn't even change your mind about wanting more. Focus on whether the relationship is worth saving and whether the two of you can put the work in now, because when the baby is here it's going to add more strain. I don't know what the issue is but I'd set expectations about ways in which you will need support and see how the relationship goes from there. You may find fatherhood shows you a side to him that helps you fall back in love with him. You may find he's useless and selfish in which case it makes no sense to stay just for a hypothetical child that will only keep you in a miserable relationship for longer. You may already know you want to leave, in which case you shouldn't wait. Don't let your child see you unhappy for years because you want another child.

You’re not crazy. This is normal! I know it isn’t easy but I highly highly highly reccomend working on your relationship and getting counseling before baby comes. Postpartum is hard. Postpartum and being at odds with your partner is exponentially harder. That way you’ll have a better postpartum and there’s hope to continue your family together when you’re in a better place with one another when in the groove as parents of one. Best of luck 🫶🏻