She said: "I'm so happy as the baby's been moving more. When I'm lying in bed, it starts kicking and then I don't want to go to sleep as I'm too excited.
"So I lie awake chasing the baby around my stomach to make sure I feel all the movements."
The 32-year-old beauty is determined to stay as active as possible throughout her pregnancy so has splashed out on a treadmill to work out at home.
She wrote in her column for Britain's OK! magazine: "I got a treadmill delivered last week. There's not much I can safely do in the second stage of my pregnancy, but I can walk.
"I do prefer walking outside but I don't always want to go out on my own. I'm determined to do it for an hour each day so I think I'll just put my tunes on at home and hit the treadmill.
"I've always been active and this idea of not doing anything bothers me, so this is a good option for pregnant me."