20 st weeks of pregnancy: the threshold of viability

Reviewed by

EFELYA With more than 25 experienced practitioners.

At 22 weeks of amenorrhoea, your foetus is almost 22 centimetres long and weighs about 500 grams. According to the WHO, your fetus has reached the limit of viability, i.e. 22 weeks of amenorrhoea or 500 grams, which is the threshold for possible survival if your child were to be born.

It would then be considered very premature. His respiratory and digestive systems are not yet mature. His five senses are well developed, which makes the fifth month of pregnancy an ideal time to stimulate them: through stroking his belly, talking to him, or a varied and balanced diet. Her fat reserves are still limited and her skin, still a little wrinkled, will stretch later on.