Как мой 3-месячный ребенок уже сидит самостоятельно?

OMFG!!! So, today I was sitting my daughter on my lap, and she leaned forward. So I very carefully took my hands off her and she sat up all by her self!!!! And for longer than just a few seconds!!! Barely 3 months old and my baby is sitting up!!! How TF did I get so lucky with this beautiful, smart, and strong baby girl???