AFTER THE BIRTH

As soon as you feel up to it, go for walks and try some gentle pelvic floor exercises and stretches.

Rosie, who’s been working with Vogue on her fitness, advises you should wait until your six-week postnatal check-up before returning to high-impact exercise such as running or Zumba.

“Start slow and steady and don’t feel guilty if you’re not ready,” says Rosie. “Do what feels good for your mental health and build up your strength slowly.”