My son is a little over 15 months, and apart from saying "Mama, Papa, Wow and Woody" he doesn't talk (so that we can understand him)

He has whole conversations (in his own language) and points to things left and right but we have no clue what he is saying. He says "pitou" (french for doggy) when he sees one, and he can bark or roar like a lion. but that's about it.

I know some kids speak much sooner, but the fact that I'm speaking to him only in english (and he understands) and my husband/family and daycare speak to him only in french (and understands) I have a feeling it will take a while.

Did you raise your child bilingual? If so, when did you start understanding them?