My stunning wife of 41 years gave me 8 incredible kids, and always returned to a size 4 in 6 - 9 months after birth, mostly she says due to nursing that just sucks the fat off. But I know it was also from her chasing the other small ones, eating well, and walking a mile a day to our mailbox and back. No gym.
Yes, still a 4 - on some dresses - 6 max on some......
No, no pics. Too many would be trying to chase her down.... ;-)
...despite her pleas to you to let her drive or at least buy her a bike.......good discipline bro!