21 st week of pregnancy: an increasingly agile baby

His eyelids start to come off little by little...your foetus becomes aware of the difference between darkness and light. He becomes more and more agile in his movements and experiences acrobatic phases. His eyes gradually become pigmented, giving them a blue colour, but this will change in the first few weeks of life.

In little boys, the testicles begin to descend from the abdomen into the future scrotum.