Firstly, I want to say we're not in the UK and don't have access to the usual kind of check ups, etc.
I'm getting a bit worried about dp's nephew. He's 2.10, and doesn't speak much at all. Was very impressed when he said bye bye to me the other day, first time ever. He lives with his mother, who's profoundly deaf, and his grandparents who are both hearing. Mother never learnt to lipread, and the family have their own sign. Nephew doesn't verbalise much, is noticeably quieter than his 1 y o sister. Does make eye contact, points, is interested in things. Just very very quiet.
So what level of speech, at what age, is a cause for concern? Is there a known speech delay associated with having a non-hearing parent, and if so how long? I can't help comparing with dd (my only, who's just 2 and quite far ahead), but I think boys are often slower than girls with language anyway?