No gifts at Baby shower

So my mother in law is throwing me a baby shower which I was so thankful for because we don't have tons of money saved up for everything and just excited to celebrate with my husbands side of the fam even though I don't know them well. 
However, she wrote on the invite "no need to bring gifts"😔 I really don't want to be selfish or shallow but I was honestly hoping for gifts so we could have money for diapers and stuff. Am I wrong for feeling weird and sad? I just really wanted people to bring stuff off the registry  and for them to be excited about all the things my baby will use that they brought. I don't know. Maybe that's wrong of me 😕