Note: The length, weight and size mentioned below are only a guideline, as these vary from baby to baby and from one pregnancy to another.

Your baby is swimming in a tiny pool of amniotic fluid (about a cup of fluid has accumulated inside of you at this stage). This fluid plays an important role in the development of your baby's pulmonary system. The amniotic fluid allows your baby to breathe in the utero as the fluid moves in and out of baby's lungs. The fluid also provides protection to baby as it contains antibiotic agents to inhibit bacterial growth hence your baby is protected prior to its birth. The umbilical cord is attached to the lower part of baby's body. Legs are longer than arms and both limbs move; this can be captured on the ultrasound screen. Some women may also start to feel their baby move at this point of pregnancy; these feelings have been compared to gas bubbles. Many women do not recognize the feeling and may attribute it to being gas bubbles when actually it is their baby moving. Your baby measures at about 4½ inches (11.5 cm) and weighs close to 2¾ oz (80g).