Baby movement!

Haley • I am married to the man of my dreams and we have two beautiful little girls (8 and 2) and another baby girl due in May!
So I've looked all over online to find the answer for this but have had no luck. The last week or two whenever I move my torso a certain direction I feel a huge kick by my belly button! (Baby girls hangout spot) 
I was worried at first that maybe I squished her too hard but now it's happening when I'm doing every day things like getting in the car. I'm not crazy right, that is baby kicking right? Lol it's been a while since I had my first! I'm just a little concerned I might be hurting her when she does that. Does anyone know?