I have done both pilates and yoga prepregnancy and I wanted to keep this up through my pregnancy. This video is a good pilates video for a woman that isn't pregnant, but it contains many exercises that a pregnant woman shouldn't do after the first trimester. I have been told by a number of sources, including my doctor, that you should eliminate exercises that are performed while flat on your back or while you're standing in one place for long periods, as both can reduce blood flow to the fetus. A lot of this video is done while lying flat on your back. Don't waste your money on this video if you have others, just continue with the others and skip the exercises that are done while laying flat on your back.