Questions ladies, how do you know if your water broke? I'm 2am dilated 80effaced, baby is -1station…

Questions ladies, how do you know if your water broke? I'm 2am dilated 80effaced, baby is -1station with membranes bulging. I was sent home after the second shot for the babies lungs and I was sitting on the end of the bed when all of a sudden my undies were soaked my pants liner. Had a strong sweetish smell and some white flakes on undies. Then I go to get up and I see fluid all over the toilet I guess from where I pulled my panties down. Wasn't exactly super clear. Didn't smell like my undies...