I am in the trial period of the app, and I am very confused by which of the core videos I am supposed to follow to keep my core from doming. I am in my second trimester and am wanting to get back into working out again but I'm really scared to do something that is going to harm my baby or damage my core. Do I need to watch all 11 of the core videos before I can get started? It seems like I can't stop my core from doming, and the language in the videos is very technical. I have always been a pretty active person, but ever since I got pregnant I nervous to work out and I was hoping this app might help.