Reception Later

I will be getting married here in a few weeks and I would like to invite everyone to my later date reception. The thing is is I’m very self conscious and I constantly think no one likes me. I have 180 guests and I would like to have them all show up but I don’t feel like going through the entire planning process again. Would anyone think it’s weird that we are already married at our reception? I worry about what others might think a lot.