Being Pregnant is going to ruin my relationship

My fiancé and I have always had a great relationship, yea every couple has there ups and downs, we had our moments but always worked through them just like we will this but right now, I don’t know if it’s the hormones but It feels like I don’t know what the fuck I’m doing. He calls me sensitive and bitchy, like “ why are you always being so bitchy” and I have no clue what I am doing to be this bitchy. He claims I’m always bitching about something, when most of the time I’m just trying to tell him what’s going on with me or what’s affecting me throughout this pregnancy so far, like our dog smelling so bad and how it makes me want to puke. And he’s just doesn’t get it, and he claims he’s doing the best he can to deal with me but most of the time he’s just so mean and insensitive to how I am feeling. Or it’s why are you crying now? Or what’s wrong with you? And god I’m just really thinking like I’m having a kid with you, I want to marry you and you treat me like this? I still give him his back rubs because his back always hurts, he still gets to go to the gym for 3 hours with his buddy, or hang out and have drinks all night with his friends, I clean the house every day still, but he goes to work while I’m in school so that means his life’s the hardest in his mind. Like this is bullshit. Our relationship just so one sided at this point. Not to mention he calls me stupid every other day, like I’m in nursing school, I had a 3.8 GPA. I’m not stupid. And he has constantly been hurting my feelings and I just feel so lost. Frankly I want to leave sometimes. But it’s not like that all the time. I just don’t know anymore. And I’m not looking for judgement , I just gotta know maybe it’s the hormones doing all of this and he just is a clueless man who doesn’t know how to handle any of it. God please don’t let my life with this man be like this. This isn’t us. I also feel so lonely, I only see him for 3 hours a day basically, then we’re asleep. I just don’t know anymore.

Update-

Called him out on how he’s been treating me and now I’m getting the silent treatment and turned away on the other side of the bed... wow. God I literally just want to die. I can not take this.