31 weeks pregnant on procardia (nifedipine) & vistarol & at last prenatal appt, dr said cervix is closed but felt baby's head & have had severe cramps for hours?

Need to go to hosp! Procardia (nifedipine) is used to treat preterm labor/contractions. So if you are on it and still getting cramps (which are likely contractions) you need to go to l&d or ur doctors office: need a fetal fibronectin test, need a sonogram measurement of cervix length and monitoring for preterm labor. If ptl: need to be admitted to hospital to try to stop it.