37weekspreg.regular painful contractions for over 24hrs.was sent home from the hospital cervix hadn't changed.now only having random contractions.why?

What did your OB: Say your OB should have explained that sometimes you can have false labor , if it was the real labor the cervix would have changed and they would not have become less frequent , but you could go into labor anytime, so if they get regular again or your water breaks ( even if you are having no contractions) you need to call your ob.