I hate spiders… and had it been me in the video I would have been scared out of my skin! So, this is what you do not do if you see a pregnant spider! If you see an pregnant spider you do not squash it. You first spray it with the bug poison first. A YouTuber saw a spider near their back door and squashed it. What happened next surely freaked the YouTuber. After squashing the spider who was pregnant thousands of baby spiders erupted from the back of their mommy!