Pregnant Pippa Middleton displays her growing baby bump as she checks in at the gym - after revealing she's keeping up her fitness regime

The sporty younger sister of the Duchess of Cambridge was glowing as she left Define Fitness Studio in Fitzrovia, which charges upwards of £28 per class, on Friday. According to onlookers, the author and socialite appeared to have enjoyed a one-to-one training session with founder Ashley Verma, a former Broadway dancer. Pippa, who is married to financier James Matthews, 42, was casually dressed in a light grey hoodie and black leggings