I have an implant, I have done since December 2011 its due out December 2014. I have been having long periods as well as heavy ones to, my doctor has given me Rigevidon to help stop my periods being as bad and as long as they are I ve been on them for 6 months, they worked like a charm for them 6 months but recently they haven t been working I keep taking them after having a natural 7 day period but nothing has stopped its getting really heavy and I ve have been on my period for the past 3-4 weeks. Have you got any idea on what I should do? Please help my pains are so horrible and my stomach is quite hard, it hurt like mad.