would it be wrong of me to celebrate my youngest sons 2nd birthday a month early? I'm asking because…

would it be wrong of me to celebrate my youngest sons 2nd birthday a month early?

I'm asking because he was due on May 15th and came April 28th. With harper, I'm due May 12th. I want to have a small party for my kiddo but I don't want to risk not being able to because of the possibility of me being in labor. Opinions?