Since you have been seizure-free for over two years after a single event, you may be a candidate to gradually taper off your medication. However, this must only be done under your neurologist's supervision, as stopping abruptly can trigger seizures. Regarding pregnancy, levetiracetam is generally considered one of the safer options, while oxcarbazepine requires careful planning. It is absolutely possible to have a safe, healthy pregnancy, but you must consult your neurologist and OB/GYN first. They will optimize your treatment, likely prescribe pre-pregnancy folic acid, and monitor you closely. Please do not change your doses on your own.