Mama Week on FaceBook

According to one of my friends, it's "Mama Week" on FaceBook.  Each female is supposed to post when they became a Mama. 

This is fairly easy for someone who has a definitive date and time at which they became a parent.  For someone in my situation, it is so much more complicated.  If I were to post this on FaceBook, it would look something like this...

I became a Mama:
--in thought on May 29, 2009 when I met my son;
--in name on December 15, 2009 when my son found out that he could be adopted;
--in function on February 12, 2010 when my son moved in to my house;
--legally on September 29, 2010 when the adoption finalized.

I started the process to become a Mama in February 2008.