Help!!! I have to plan my own baby shower

Zenobia • Wife to the love of my Life. Mother to a 6 year old Princess. And due August 17, 2016 with our love child! So excited!
I really need opinions! I was thinking of having my baby shower after my baby is born because that's when more people would be able to attend! If I have it before there might only be 5 people who participate vs 100 after. Is it okay for baby to be present at the baby shower or should I just send everyone my registry? Idk what to due but I need to make up my mind before August!