In week 14 of pregnancy, your actions are affecting your developing baby as much as ever. With your renewed energy that comes as morning sickness goes away, you may want to renew your interest in your exercise program. You may be starting to gain weight more noticeably, and that's ok in fact, a little extra weight is necessary to support you and your developing baby. However, exercise will help keep your baby healthy. Make sure you're choosing moderate levels of activity, like walking or swimming. Avoid contact sports that may cause injury or trauma to you and your baby. Also, avoid anything too strenuous, since that can also put strain on your baby and cut off its oxygen supply. Talk to your doctor if you have questions about how particular exercises or activities may affect your baby.