How early is too early for a wedding shower?

Hello! My fiance and I moved to Florida but all of our family and friends are in Chicago.
We're inviting 200 people to our "destination " (Florida) wedding. The reason I call it destination is because it will be a travel trip for all guests.

To add a little more challenge, my sister/moh announced she's pregnant! (Yay!) Her due date is 2 months prior to my wedding. With the finances and fatigue that come with having a new baby, we are trying to figure out when to host the wedding shower. After the baby is born, she'll he busy busy busy. She'll also be limited with travel the last 2 months of her pregnancy (she lives in Nashville)
The shower is going to be in Chicago and the latest my sister can travel is close to January'/February. With the holidays and winter, I'm debating on having my wedding shower in fall September/October.
This puts the shower 7-8 months before the wedding. Is that too early?