Should I be part owner of a shop and be a full time mom?

My boyfriend and his brother are opening a auto detailing shop here soon and I am going to be the office lady but I’m also due the beginning of July so I’m just trying to get opinions. I will be working until I can’t any longer and then if my body and the doctor says I’m good to go after I have our son I will be right back to the shop with our son with me all the time. Do you think this is a good idea?