Swallowing and peeing
This is the period that, Your baby has started swallowing amniotic fluid and at the same time excreting urine, which he/ she then swallows again, the recycling at the full volume of fluid and after every few hours. He/She is also producing meconium. This is a black, sticky substance and will accumulate in her bowels, and this is what you will see her first dirty diaper.
And this 13th week the finger Prints are forming on your baby’s tiny fingertips.