Late talkers

So my son is going to be 3 in November. I feel like he personally talks fine but my mom literally calls me everyday and tells me he’s autistic. Iv discussed the topic with my boyfriend who had other kids and my boyfriend doesn’t feel our son is any different than his other kids or the twenty something cousins he’s seen grow up. One of things I do try and remind my mom is my son is bilingual. And not like we show him videos in French to educate him. No he spends one day with me speaking spangelish, then the next day with my boyfriends mom only speaking Spanish, accent and all, and then the next day with my boyfriend who only speaks English to him.

Was anyone else’s kids bilingual kids late talkers or should I be worried