What exactly is the difference between good old yoga and prenatal yoga? I have been taking yoga classes for a while now and we are about to TTC LO#2. My gym does not offer prenatal yoga classes, but, if I revert back to beginner poses, is that the same as prenatal? Are there forms I should not do? I know I could ask the instructor if/when I get a BFP, but I thought I would check here.