Well if not, here are a few steps you may consider.
1. Start thinking of who you want to invite.
2. Prioritize your list of who you really want to invite and who maybe can come just to the reception.
3. Be realistic about your budget.
4. Send out inquiries or make calls to those who you feel may attend and bringing gifts, of course.
5. Plan your list.
6. Be sure to go over your list with your mate. :)