Kelly is 20 years old and is a nursery nurse from Maidenhead.
Although her pregnancy came as a surprise, she and partner Luke couldn't be more excited. Kelly is currently living with her dad and stepmum while she and Luke look for a place of their own.
"Both our families are really happy and supportive," she says. Kelly is around 11 weeks pregnant and will be having her first midwife appointment soon.
Kelly is making sure to look into healthy foods and exercises beneficial for both herself and her baby.
Follow Kelly'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