A lot of pregnant mothers nowadays have been quite active in their lifestyle and lately, i have come across many that love to work out from home. I feel that the best prop for them is the Fitness Ball! The big comfort prop for your workout in gyms, studios or at home :) The only thing that will probably be a nuisance is its size and especially when you need that clear space at home. Still, you can probably set aside a small workout space for yourself during the whole 9 months ;)
Not only does this ball gives you the cushion support for your hip and lower back when seated, it also act as a weight for certain workouts and helps with good support even against a wall for that squat or obliques workout.
In Singapore, there are many places to get it at affordable prices. You can go to Lazada, Q0010 or Decathlon for a reasonable price and quality. There are variety of colours to choose from too. Take your pick and try it out for your prenatal exercises!