I'm starting to get a bit concerned that my DS2 isn't babbling really - he's just turned 9 months. He has done the odd "de de" or "ge ge" this week, and has been doing random single syllable consonants for a few weeks (not all that often at all, not even daily, but I have definitely heard the odd "ma" "ga" "ba"). He says "ha" a lot but again, only single, not "ha ha ha".
He smiled early, before 3 weeks, and was laughing at 9 weeks, and has always been very smiley / easy to get him to laugh. He's been able to clap since he turned 8 months too, actually even earlier but the co-ordination wasn't quite there for a proper clap until 8 months.
Should I worry? Is this quite usual? I feel like all the other babies this age are babbling.
For context, I also have DS1 who started saying "da da da" at 8 months, he was always very vocal. He's now nearly 4 and there is a chance he's on the spectrum, or has another neuro diversity, although the jury is out and I don't even think we'll get to an assessment at this point (he is quirky for sure, but has never had any delays and seems to be doing well at nursery). This has fuelled my worry.