I am a mother of two children, a 9-year old boy and a 4-month old girl. When the baby was still on my womb, my son was so excited to see his sister. But when I delivered my baby, I noticed that there was a change in his behavior. He always wants my attention. He even wants to sleep beside me during night time. Though I make it a point that I meet his needs, is there a possibility that he feels jealous at times with his sister?