I've always taken a multivit + iron, so when we started ttc I just added extra folic acid and Vit D as my doc advised. I just found out I'm pregnant a few days ago 
and was googling... and I just read that you shouldn't take vitamin A! So I've stopped the multivit as of today (last one was yesterday) and will go get one without Vit A, but have I already caused damage? I'm waiting for my doc appt to confirm how far long I am, but reckon it is around 4 weeks.
Google is really not my friend... please help!