Stages of pregnancy
First trimester (weeks 1-13): the organs form. Nausea, tiredness and breast tenderness are common. The first scan, blood tests and combined screening take place.
Second trimester (weeks 14-27): the baby grows quickly and movements begin to be felt. The anomaly scan and glucose tolerance test happen now.
Third trimester (weeks 28-40): the baby gains weight and the lungs mature. Visits become more frequent and birth plans are discussed.
Sizes and weights are averages; every baby develops at its own pace. Your baby's growth is best assessed by examination and ultrasound.
Frequently Asked Questions
When will I feel the baby move?
First-time mothers usually feel movements at 18-20 weeks; women who have given birth before may feel them from around 16 weeks.