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Pregnancy Week 16

Fetal Development at week 16

Your Baby

Rapid and sustained growth continues all this week. Your baby’s head and neck have assumed more of a straight-line relationship. Baby’s legs have lengthened and are now well developed. The ears are close to their final position. The toenails are growing from their nail beds.

Your baby measures 120mm from head to bum and weighs around 100g, having more than doubled its size in a mere two weeks.


You may experience occasional nosebleeds and nasal stuffiness due to increases in blood volume and the effects of the hormone estrogen, which causes your nasal membranes to swell.

If the full sensation in your nose or ears is accompanied by pain, fever, or flu-like symptoms, check with your doctor or midwife to make sure you don’t have an infection. If you are running a temperature, your baby’s environment warms up, too. Consult with your doctor or midwife before you take anything for symptom relief.

The systems that govern your baby’s blood supply make it impossible for the baby to completely deplete the mother’s blood supply of nutrients, so there’s always something left over for your system.