Went to the hospital because my blood pressure was a little high. While i was hooked up in the room, i started having contractions every two minutes. Blood pressure went down, but the contractions continued. Dr checked me and i am not dilated at all and 50% effaced. Sent me home saying to come back when i cant talk or walk through the contractions or my water breaks. How long will these contractions go on before i make some progress? Im 37 weeks