To dream of a baby shower represents feelings about being totally supported with all you need with a new beginning or new responsibility.
Alternatively, it may reflect awareness of someone else’s new life being perfectly cared about. Noticing yourself “being there” for someone. It may also reflect anxiety about being noticed as helpful enough.
Negatively, may reflect feelings about having to go out of your way to be extra supportive of someone else when you feel they don’t deserve it. It may also reflect your concern that someone that you think is a loser doesn’t “fuck up” a new opportunity.