I would do what the doctor told you to do.
Also, are your contractions timeable? Especially at the point you are it's normal to have more intense BH contractions or even some prodromal labor (which is kind of like between BH and active labor, it can start and stop, sometimes it causes slow cervical change, sometimes nothing). If you're having contractions that aren't timeable I wouldn't worry about it at all. Now, if you start having these more intense contractions and they become timeable you might want to give your office a call just to let them know what's going on. The "5-1-1 rule" exists because most people aren't even in active labor before then.