Baby giggles/laughs

Alexsandra • Expecting my second child another little girl due in may😊 , my first daughter is excited to be a big sister 😇😉❤️
Hello I was wondering when everyone's babies started to laugh or giggle where it makes noise my 12 week old makes the face like she's laughing or giggling but no sound an I've been waiting to hear her laugh but nothing just wanted to see if other moms are going through the same ? Like when do babies find their laugh ? I swear my first daughter giggled right away so I find it odd that it's taken this long with my second an nothing still...shes a happy girl an smiles a lot