Hello I’m sorry to hear what you’re going through it sounds like you’ve had it really tough.
I’m only 21 myself and have no experience when it comes to marriage however I’m sure I can give some guidance whether you deem it relevant or not. Firstly in any sort of relationship you have to be happy if you’re not happy or don’t experience happiness you’ve got to ask yourself is it really worth putting yourself in such a position.
I understand that the marriage was never your choice to begin with or his either. I think the fact that you’ve both gave it a go and clearly you can see it’s not working despite having a daughter, it’s time you put her and yourself first. You need sit with your husband and tell him how you feel and tell him that you don’t love him or he’s only going to continue trying pressure you into situations you don’t want to be in.
Because if you don’t voice how you’re truly feeling he’ll never know and just assume everything is going great and voicing how you feel is especially important when it comes to sex, if you don’t want to do it and feel uncomfortable when he’s bringing up the idea you need to make it clear where you stand otherwise he may end up making you do what you don’t want to as some men don’t take the hint unless you put it as plainly as possible.
If you feel like speaking to him isn’t helping then you may need to consider bringing in a third party for example a family member or friend. The most important thing you should take away from this is putting you and your daughter first, if you find yourself unhappy make yourself happy by moving elsewhere.
Good luck and God bless.