How do I add my other children on my profile? It only let me put in that I am pregnant now and the weeks but not my two older kids?? Thanks in advance for the help

Introduction: My name is Tiffany I am 27 years old and am currently 26 weeks pregnant with our 3rd child a boy! We have a 6 year old daughter and 3 year old son!! I am both excited and nervous this time around. Feel bad that i truly hoped for another girl but will be happy with a healthy baby boy. Pic from a few weeks ago.

This is my oldest and only girl!! Love the way this picture turned out!!