Is this normal?

Here’s my situation. My gf finally said that we can start trying for baby #2 and I’m excited about it… but she also said that after she’s pregnant, we’re not going to be having sex anymore… here’s the problem is that she’s already done that to me before with our first child and we haven’t had sex in about 3-4 years.. I want to have another baby with her but I feel like I’m going to be a piece of meat that cums in her until she’s pregnant & just thrown off to the side because she got what she wanted and doesn’t need me anymore… I want another baby but the thought of never having sex and going back to jacking off again has me very hesitant and uncomfortable. I don’t even think I can even get turned on enough to actually want to have sex or even cum because she hasn’t touched in me such a long time and everytime I suggest different places in our house to have sex when our daughter is sleeping or try initiating it, she entertains the idea but eventually shuts it down everytime. I posted before about not being able to orgasm with her and I tried to have that conversation and it was going good until it wasn’t. I really feel like we need to have some serious conversations about if she’s really serious about not having sex again because she’s done it before with our daughter and if its going to be like that again this time around then I don’t want to have another baby. Is my situation normal and has anyone else been through this before?