Week 21. - What is my baby development at 21 week ?

I smile with joy and make sounds to make contact with you.
While lying on my tummy, I can prop myself up using both arms and extend one of them to grab a toy.
I’m discovering my body by touching my arms, thighs, and feet.
I can twist my wrists when holding a toy to take a look at it from all sides.
I like everything that makes sounds and has attractive, vibrant colours.