Polly lives in London and is already in her second trimester. She and her partner had thought about trying for a baby for a quite a while and both were surprised at how quickly she fell pregnant, "especially considering my age!" says 34-year-old Polly.
Despite still working full-time, Polly tries to exercise regularly by swimming or walking.
She and her partner are looking forward to her next scan this month when they hope to find out whether they are having a boy or a girl!
Follow Polly's progress on The Pregnancy Diaries.
For more information on pregnancy health and advice go to www.nhs.uk/Start4Life
We're expecting too! Check out handbag.com/babybag