Hi ahgunbaby,
I've been eating the same supplements since I was 6 weeks pregnant I think. I'm 32 weeks now and so far so good!
I've read good reviews online. I don't think it's very popular in SG bcos it's consider more expensive compared to the more popular supplements like Obimin. But if u compare the list of active ingredients, Blackmore is more comprehensive.
Oh, and the cheapest place to get it is Mustafa I think. I found that it's cheaper than Watson and Guardian. I usually buy the big bottle, 120 capsule for $42.40 at Mustafa.