Ever have the urge to have unprotected sex? Well, get ready to feel your fallopian tubes curl up like gift-wrap ribbon.

We know the girls at Jezebel said it was OK, but if you need even more motivation than that not to do it, check out the horrifying trend our friends at Urlesque unearthed: time-lapse pregnancy videos.

They're scarier than anything we've seen in the "Alien" movies and NOVA combined. We keep pausing it at the exact moment in the video when she gets a "mom" haircut. Watch, if you dare!