Most of the girls in our society specially become so fat after their delivery and it is quite hard to go back to the same shape like their body was before.
Few girls succeed to loose their weight but most of the house wives do not bother to maintain their body. As the bulky body is the most common thing in all married girls so it is recommended not to wear so tight and fitted dresses and go for sac n frocks kind of shirts and try to avoid horizontal strips on dresses it makes you look more fat. Wear vertical stripped shirts and go for nice and eye catching colors.
If you want to have an example so Farah Khan is the celebrity which you can follow. She is the best example of wearing nice and decent dresses despite having a bulky body.