Signs of labor

Hello, I'm on my 38 weeks 2days. EDD: May 3,2021 I had a brown discharge and close interval of contractions. I informed my OB and told to go to the hospital to check my IE. Upon checking, my cervix is already open and 1cm dilated so we went back home. How many days do you think will it take to be fully dilated? #1stimemom #firstbaby