Going from a mom of 1 to a mom of 2!

Help ladies. My 4 year old son is amazing. He loves kissing my belly, he reads books to my belly every night. He try's to feed the baby already. I mean he's so sweet. I've been extremely attached to him for the last 4 years and just wanted to get some feedback or tips from moms who have had 2 boys. Help me with this transition bringing home another baby. I want my 4 year old to feel the same love and attention as before.