Body issues

So I’m having my first child and I am excited but more often than not I’ll go to get dressed notice my now starting to protrude stomach and get a bit depressed. I was really enjoying my body before I got pregnant and now that I am it’s just hard to come to terms with the changes happening. I’m 4 months now so my bump is just beginning and I know I don’t LOOK pregnant to most but in my own eyes I look like a whale 😭. My normal kind of style looks weird on me now in my opinion and I’m between feeling bad for being ashamed in a way & being happy about bringing a child into the world. I know it should be one of the happiest times in my life but idk. I want my baby minus the body that comes with it and I feel like a shitty person for it. I just don’t feel beautiful anymore. I barely want to go anywhere because if I attempt to dress up I’ll look in the mirror have these exact feelings and just want to get back in the bed. How can I switch this mindset I want to be proud of my changes not embarrassed by them.