Work baby shower.

I really hate complaining about things and I don't know who to complain to about it. At work whenever there's a pregnant woman, they get thrown a shower at work. I'm 33 weeks pregnant. One of the other girls got a shower and the one lady who told me she wanted to throw me one said that she "wanted to do a potluck lunch for me but couldn't find anyone to contribute to it"
Yesterday she printed papers about a thanksgiving potluck and people signed up. Obviously not for me. I'm not trying to sound like a spoiled princess but I just find it really rude. I bust my ass all year basically my job title is everyone's bitch and I get NOTHING for it. I'm so tired of constantly being nice to people who couldn't care less about me. I feel so unappreciated. Why is everyone else's pregnancy more special than mine?