Prolonged bleeding/spotting while using implanon

Patient: I been on the implanon since November 17, 2014 and I started my period December 15, 2014 i’m still bleeding and it hasn’t stop at all i’m more spotting than bleeding is it normal… i plan on getting off the implanon how soon could i get pregnant once i get it removed February 13, 2015?

Symptoms: Prolonged spotting/bleeding