I know they usually hide the bumps but i guess once it's public knowledge that they're pregnant in real life, us viewers just see past it as we know they aren't really in the soap. I guess it becomes difficult the more bigger they get. Kylie in Corrie looked big during her final scenes. Doesn't really bother me anymore as I know it's not the character that's pregnant.
They're getting lazy with it now. She may as well go around in her usual tight fitted clothes seeing as that'll hide the bump just as well as the clothes she's wearing now.