does anyone take lamictal?

Does anyone take lamictal for pregnancy? I take 250mg two twice a day and around 8am (it's 930 now in my time) I had a grandmal seizure. I am 34w3d and I after my seizure I had forgotten that I took a dose before my seizure so I went ahead and took another dose. Has anyone done this while pregnant? I called poison control and they said I should be fine and to just not take it tonight. But I want to know if this has happened to any one well in the 3rd trimester or even at all while pregnant? Or know anyone that's this has happened too.