Babies that were born when your SN child was a toddler/young child over take your child with their development.
This has happened a few times with us. When Ellie was 18 months a few people we know had babies. Now Ellie is 3.7 years I see these 'babies' now and again and they can talk and understand more than her.
I remember one Mum telling me her 10 month old was pulling herself up and walking round the furniture. It took the edge off my happiness as the previous week we were so pleased that Ellie had done it, at aged 2yrs though
Makes me feel sad.
Sorry, my posts are all so depressing!!!