All it takes is a baby sitting on your pelvis floor and one uncomfortable waddle to the water cooler. The next thing you know you're up to your ass in trouble.
In my day to day practice, I see lots of people (even mummies, when they have the time) for various reasons which can be alleviated by simple fit-into-your-day changes.
The exercise that can help you heal after delivery, prevent urinary incontinence, and keep hemorrhoids at day and nobody will ever know you're doing it.