Mikki, you didn 't say but I am assuming the party is sometime soon. If that's the case, I would send out the invitations ASAP because the next several weeks are very busy for everyone. Plenty of graduation parties, weddings, vacations, etc.
You should get the inviations out quickly so folks can mark the date on their calendars.
"As a girl I had zero interest in the stove." - Julia Child
This is real inspiration. Look what Julia became!