Help me 😩

So I found out that I am pregnant and due 2 months before my wedding. This is an unplanned pregnancy that I wanted to happen after I get married but regardless I'm still happy about my baby. Any advice on what I can do to help snatch my body back together? Should I order my dress in the size I am now before I gain baby weight or wait until I have my baby an go find a dress? I want to look an feel good walking down the aisle and look good in my pics 😳