should your boyfriend/husband contribute financially to the babyshower?

so my boyfriend & I are having a baby shower this weekend, it'll be at my grandparents house. I've been planning it for months now, & he keeps bringing up how he shouldn't have to help pay for anything because I'M the one planning it. BUT, it's a joint shower, and there's about 70-80 people going, half of that amount consists of his friends and family. My grandparents are preparing the food, my mom has been helping financially where she can, & I've been hand-crafting the decorations, collected all the rsvps & sent out invitations awhile back, I'm pretty much getting everything nice and organized. for some reason, he is so against helping me out. all of my close best friends would have planned it for me, but they're in Vegas. That's where I'm from. I now live in California. This is my first child, so I just want some opinions on the subject.

is he wrong for making it seem like such a hassle to help financially?

Was it wrong for him to invite tons of friends, family, and fraternity if he had no desire to help with anything? He was dead-set on having a joint-shower.

Am I WRONG for asking?

Thanks y'all.