Does "pregnant brain" exist?

Maybe: Many pregnant women feel like their emotions, ability to concentrate, ability to prioritize and memory are all effected in pregnancy. The hormonal changes in the brain during pregnancy are significant. I encouraged women to raise these concerns with their doctor at a routine visit. I encourage them to be specific in what seems different so we can determine if it normal or not.

Technically no: The term pregnant brain has been used to describe fogginess and forgetfulness during the pregnancy. Recent studies have shown that mental capacity and memory are not impaired during pregnancy. However, you may have more distractions and stress around this time which could be a factor.