Anyone else??

My ob is concerned my AEDs have stopped my babys growth. She only measured 31 weeks at my last ultrasound and when I went in for my appointment this week I measured at 31 weeks still. I'm 34 weeks. I go in tomorrow for another ultrasound to check up on her growth and I'm worried. What will happen if shes not growing? Shes still moving a lot which is giving me hope.