Epilepsy and Pregnancy

Hello! I am 4 weeks pregnant (so still super early!) I am epileptic and take 1500mg of Keppra twice daily. We have been TTC for a while, and I spoke to my neurologist prior to TTC, but he didn’t give me much advice, just said Keppra was considered relatively safe and to take a prenatal vitamin.

I have been taking 1200mcg of folic acid daily (including what is in my prenatal), but I am worried that isn’t enough. I will call my neurologist when they open a couple of days from now, but right now I am anxious.

Anyone else in a similar situation? How much folic acid did your doctor recommend?