Baby decided she could sit up, stand and crawl all in the same day.

My sweet baby girl decided at 7 months she would finally do everything on the same day. I had previously tried and tried to get her to sit up but she would just fall over after a couple of seconds. Last week I get to work and put her in her playpen that was still raised up and I look over from my desk and she was standing. Scared the pee out of me lol! I thought she was going to tumble out. But I grabbed her and lowered it down. I got home and she just starts crawling all over getting into everything 😂 every now and then she would just sit up and sit there looking at me like what? Lol