Imminent delivery

Transverse or footling breech presentation (if multiple gestation, presenting fetus)

Unstable lie (if multiple gestation, presenting fetus)

Funic presentation (if multiple gestation, presenting fetus)

Active vaginal bleeding

Regular, painful contractions (\>=3 in 10 minutes for 30 minutes or more) consistent with labor

Clinical contraindication to ambulation as determined by the managing physician

Physician declines to have the patient approached for participation

Lethal fetal anomalies

Ambulation for Latency During Expectant Management of PPROM