My 5.5 month old smiles a lot and screeches when something is exciting but she has yet to belly laugh...anyone else’s LO taking its time to find something funny? Is this normal? I know my first laughed at like 4 months I think. She rolls both ways and pushes up on her hands and is almost sitting so I don’t think it’s a development issue but I just find it strange! Maybe I’m not as funny as I thought🤔anyone else’s LO less than amused by your efforts to make them laugh?