From size 12 to size 8.

[GoldenFarfalle]

I'm 5'4 and 66kg. I lost 8 kilos by counting calories, exercise and low carb. I went down from size 12 to size 10.
Pre child I was size 8 and weighted 58-60 kilos and I would like to be able to use my old clothes but wonder how realistic it is as I heard our bone structure change after having a child. Thank you.

Definitely possible although you may find that your body doesn't look the same at the same weight. I'm 5'5" and around 50kg, same size and weight as pre-babies, but everything about my body looks more rounded than before. It's as though there's a padded layer of fats that surround me to make it nice and soft for the kids to lay on. 😂

I got back to my normal weight fairly quickly after both DC but my body shape definitely changed. Most annoyingly - my ribcage expanded and never went back in, so none of my old dresses (the Coast type ones with zips at the side/back) fit any more! Trousers fit fine although my arse is much flatter than it was - no amount of squats or lunges seem to help!