Proprioception (unconscious sense of body)
Development begins at 9 weeks. Constant feedback from the womb helps baby to understand its physical presence, abilities and restrictions. This is calming for the foetus, sense of separateness comes several months later.

Hearing
The vestibular system (balance) begins to develop. The vestibular system is adult-like within 12 weeks. It is crucial, enabling baby to sense orientation so they can later turn head down, ready for birth.
Hearing is developed by week 22.

Taste & smell
By 16 weeks, amniotic fluid is swallowed, enabling the foetus to become familiar with the taste and smell of their mother. This helps later to establish good feeding. For this reason, perfume and strong soap may not be a good idea.

Sight
Not needed in the womb but eyes are fully developed by week 24.
At around 33 weeks, the foetus’ pupils are able to constrict and dilate.
The foetus is able to make out dim shapes and practise opening and closing eyelids.

As your baby’s develops so does their sight. Here’s how it develops after they are born.