Iv beed on nuvaring for 9 months and at first I would put it in and take it out every 3 weeks but I changed it to 4 weeks so I won't get my period but recently my Nuva rings came a day after I'm suppose to put it in so I would take it out and put it in the same day and now I get my period when I have my nuvaring on. Is it bad should I go to a doctor?