TriNessa Birth Control?

Rayna • TTC #1 for a 2015 baby. Miscarriage in May 2013.
I've been taking it for almost a year. My boyfriend and I want to try to conceive but I'm not sure about how long I need to be off of it for it to be completely out of my system so our baby will be healthy and we'll have a more likely chance of succeeding. Any ideas on how long we should wait?