"I Didn't Know I Was Pregnant"

This morning I woke up to Alexander rolling around on what felt like the top of my ribs. Apparently he was trying to get comfy, so I had to give him a little nudge downward, off my ribs, to where I thought it might be a little more comfortable for the both of us.
As I sat and watched him do somersaults I couldn't help but think, "how in the world can so many people go on that show "I Didn't know I was pregnant"?" Seriously?
Maybe both my kids are just extreme kickers because they're going to grow up to be soccer players, but even if a baby isn't a strong kicker wouldn't you still feel something! Wouldn't it alarm you to feel something moving around like that. Sometimes I feel like being pregnant is like a sci-fi movie when someone has an alien moving around inside of them. It seriously would freak me out if I didn't know what was going on.
And I am someone with hardly any pregnancy symptoms. I don't get sick, or crazy cravings, or swollen ankles or anything like that. However, extreme tiredness, and the fact that I FINALLY have a breast size I can be proud, of would be huge hints towards pregnancy! Not to mention the whole missing your monthly "gift" thing. I know some people have reasonable excuses for that, but not everyone does..

I just don't get it.