Quoting Ole' No Name:" My friend is due today she's at the hospital having regular contractions but only dilated to 1.5 cm. Will they do a membrane sweep?"
I went twice with contractions and was only 2 cms both times. They sent me home until they got closer together.
The only person that usually does that is the OB when you arent making any progress. If her contractions are regular, she will dilate on her own.