Well, I didn't do a lot of maternity shopping but I did take a look around and found a few good places...
Funky Mama Maternity
F21A, 1st Floor Hartamas Shopping Centre
Not a large store, but there are some pretty interesting stuff here.
Bump in Style
Block P-2-19 (1st Floor), Plaza Damas
Personally, I thought they were rather expensive, though the clothes there are very nice.
Located in the PDI Concept Store
L1, Ikano Power Center,
L1, Oval, 1Utama New Wing,
The picture to the left was a dress I bought from Miki Mom for a wedding. It's not a very clear picture, but it's the only one I have so I guess it'll have to do. You can check out their website to see what else they have.
Miki Mom is pretty affordable and they also sell office clothes.
I bought most of my clothes from the Singapore branch in Takashimaya, Orchard Road. They also gave me a card that listed some of the old Thyme Maternity stores located in Malaysia which listed 1Utama and Midvalley Megamall as two locations with their branches. I wasn't able to locate the branch in 1Utama so I presume they closed. It's a real pity because I really liked the stuff at Thyme Maternity. Since I don't really go shopping at Megamall, I never checked whether that branch still exists.
The top and pants in the picture below are two of the items I bought from Thyme Maternity.
L2, 1 Utama,
They have quite a few boutiques around the place, but the one I shopped at was the branch in 1Utama.
SS2 square, corner shop located above the jewellery store (not Poh Kong, but the other one) facing the houses.
These are just the shops I've visited, though I've seen others around. I didn't really take note of the shops I don't walk into because the stuff in the windows didn't inspire me. Then again, that's just my taste... There were other maternity shops located around the ones I've listed above so you can probably check them out as well to see if they suit your style.