Her Pilates instructor, Nonna Gleyzer, shared her fitness secrets with People:
'"We just do less repetitions and less moves on her back. We're keeping the muscles strong and long. And we do lower abs and deep breathing which will help with the birth!'
So, how is Stacy feeling?
'I haven't had one day where I've been sick or tired. I've had so much energy, but I'm very conscious of making sure I work out every day and eating healthy, so I really, truly believe that's a big part of it," said Stacy.
She also shared an Instagram snap last week which was captioned:
"Stretching your obliques is key during pregnancy. I devote at least 15 minutes each day to stretching! #fitpregnancy #pregnancytip."
And her diet secrets?
"I try to be as organic as possible, especially with food. I not only try to eat organic, but no preservatives, nothing artificial."
Hope you're noting this down mums-to-be...
Do you have any suggestions to add? Tweet us @handbagcom
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