Is something wrong with me?

Hello,

I hope not to make this long but I feel like I have no one I trust I can vent this to so I’m hoping that I can get some advice here. I’m currently engaged to my partner, and we live together. I love him very much and he loves me a lot but lately things on my end have been wishy washy. I just recently found out that I’m pregnant and we are excited about it but since I found out I’m pregnant I’ve been just weird feeling. I’m no longer into sex with him, I barely want him to touch me, and at bedtime I sleep with more pajamas on away from him. This has been going on for two days and he just recently said something to me about it, how he feels unwanted. I felt bad because I understand why he feels that way but the thing is I don’t understand why I’m feeling the way I feel. I use to want to be all over him, excited when he comes home from work and we had amazing sex. Now tbh I can’t wait for him to go to work, I don’t mind not talking to him on his lunch breaks, when he comes home we do talk and I hug him and kiss him but at bedtime I sleep on the far other side of the bed not wanting to be physical. He’s a very affectionate guy and I want to give that back to him but I’m feeling off. I don’t know if it’s my hormones and not feeling sexy or what is wrong with me but I feel depressed kind of. Has anyone felt this way pregnant before? I’m praying for some kind advice.