Does Pregancy Kill Brain Cells?

I went over to a rental unit of Mr. Hiller's yesterday and it proved that I'm a complete idiot. I'm gonna blame that on the pregnancy. I lifted up the garage door and since the handle was up too high for me to reach I decided for some stupid stupid reason to put my fingers in the fold of the door to pull it down just enough to grab the handle. Yeah, that worked well. After I completely smashed four fingers out of the ten I have I had to figure out how to get that door back up to release my poor little fingers. Sure I could have just lifted the door the same way I let it down, right? (Yeah, if my brain was functioning properly!) I jumped and kicked until I got my knee up high enough to lift that door. I'm now sporting four bruises in my nail beds.....so that leaves me with one question......Does pregnancy kill brain cells or am I just stupid?