Week 12 mPregnancy app

Here is a goodie from my mPregnancy app on my iPhone. This is the last informational point about week 12 of the pregnancy and it blew my mind.

“The fetus has now peed for its first time. It can now move more and among other things flex its arms and kick the legs. It might even put its thumb in the mouth. The fetus is now about 2.1 inches long”

12 weeks and it’s peeing! I wonder when it goes number 2 for the first time?