Good luck in finding a guide to prenatal yoga in Klang Valley. I researched before and only found this website useful : https://www.makchic.com/blog/2015/03/25/6-y...e-klang-valley/

But all are not very near to me and most of the classes are during peak hour, means traffic jam. Hope you can find a class that fits you. Just don't pay upfront, instead, go for a trial class before you decide.