Now I believe it - pregnancy brain is real!

This isn't something I really want to admit but now I am a believer. Pregnancy brain does exist & it is happening to me. Here is what happened....
I went to the grocery store & as I was pulling in I was on the phone with Adam. I got out of the car and went in to buy groceries like a normal person. It was raining a little so I trotted in quickly. I was in the store for about 30 to 45 minutes and was done so I checked out. It wasn't until I swiped my credit card that I realized that I didn't have my keys. No where to be found. I knew exactly where they were so I went ahead & called Adam to leave work. I walked out to my car just to make sure I didn't leave the door unlocked. Of course not but it gets worse...I left the car on! Who does that? I immediately started to cry. I had a buggy full of groceries and there I am standing in the rain behind my running car with the keys in the ignition. Unbelievable. I called Adam back to let him know the car was actually on. He is always so calm and loving. He wasn't frustrated or fluttered. It did take him about 20 to 30 minutes to get there because he works a pretty good distance away. The car was fine, we loaded the groceries & I made it home in one piece.
So there, it is true. There is such a thing as pregnancy brain. If that isn't the case, then I'm an idiot.