Any recommendations for pre-natal yoga classes?

I've heard good reviews for Como Shambala. One of my friends tried it and found the instructor friendly and knowledgeable. She also liked the studio which feels very clean and relaxing (to her). The pace and intensity of the class was good and she always feel more refreshed (and "stretched out") at the end of each session. Not sure of the pricing and class schedules now but you could enquire via their website if you are interested: http://www.comoshambhala.com/singapore/classes/yoga/pre-natal-yoga