Baby shower invitations...

My MIL is making baby shower evites and on them she wrote her name and her husbands name, my name is literally not even on the invitation except for if you scroll down. The registry also isn't on the main invitation until you scroll down and it just says a "partial" registry. Like what? Why is it only partial? And why are their names on there and not ours..I talked to her about it but it just pissed me off so much I had to vent...