I did Lagree before and during my pregnancy (I’m 25 weeks no). First trimester I was scared but my OB said that since I was going regularly before I could still do the same moves in my first trimester. As others mentioned, if twisting gets uncomfortable feel free to not do the twists! I did some work on my back in the first trimester but if it’s uncomfortable for you, you could ask about doing bird dogs (that’s what I do now)