Medication detox and pregnancy

Evening, I am new here! I’ll be 35 next week and have been on Effexor XR, Concerta and Microgynon for years now. I met with my doctor two weeks ago, as my husband and I want to start trying to get pregnant in a few months. I am started a lower dose of Concerta and then next month we will begin to taper off of the Effexor. Apparently your body naturally detoxes itself and I was told that we could start trying in a couple months, however, someone mentioned to me today that because I have been on the meds for so long, that I should wait 6-12 months before trying, just to make sure everything is out of my system. Any advice or has anyone been in a similar situation? We really want to start trying, but I obviously don’t want anything to hurt my future baby during Development.