hi. I'm 28 years old with a 6 year old son. He's my only son and even though he looks just like his dad he is all mommy with attitude and all. I found out almost 4 months ago that I am pregnant and now I am 5 months pregnant with a little boy. I'm so worried my son is going to be jealous of his little brother. Any tips on how to prevent this from happening?? I'm trying to keep him involved and he seems excited now but will that change once the baby is actually here??