Your first trimester pregnancy is often spent getting used to the idea that you’re expecting a baby and reading up on all the changes that your body is going through and are yet to come. Although it’s still early, adopting good eating habits now will give your baby the best chance of healthy development. Your baby is growing at a noticeable rate and by 13 weeks you may even be starting to show – but in the meantime this section will explain what’s happening week by week and how you can lay the foundations for a healthy pregnancy.