I went off ADEKs upon conception because the A in it is retinols (synthetic Vitamin A). Beta carotene is fine but the retinols are bad (google it to learn more). I drink a ton of milk so have no probs with D intake, I took Perfect Prenatal by New Chapter and also their Vitamin E and a rx'ed K. For me it wasn't worth the risk.
I was on so many medicines that by focusing on providing healthy vitamins to my body and baby I could forgive myself for all the meds I was exposing him to.
My cf doctor advised that I stay on ADEKs. Now that I'm onto "quality" food derived vitamins I don't know that I can go back.