Is it rude to plan your own baby shower?
I'd say it isn't rude at all, thought it may be a bit overwhelming and you might want some help. If not though and you want to go it alone I don't think it's rude. Some moms are very particular with what they want and want to make sure it entails everything they've been dreaming about. Other moms don't care at all and just want to enjoy the afternoon with family and friends. Either way I think your guests understand that they are there to celebrate your baby and it won't matter who planned it.