Winter birthday parties

Okay so some might think this isn’t an issue but I love going all out on my kids bday parties (mostly DYIs lol) but I LOVE making my kids bday parties special so I love outdoor parties because they get to run around and have fun. But I want to TTC now so bad! lol I have baby fever and I’m ready to be a mom for the 3rd time! Only thing I think about though is my baby being born in the winter and not being able to have an outdoor party as we live in Chicago where it gets real cold in the winter. So my question is for those moms with winter babies? How do you guys manage to have parties for your babies? I usually invite over 40 people. I won’t ever consider renting a hall, in my opinion they are extremely expensive for just one night so that isn’t an option for me at all. We own a home but I don’t have an open space 😭