My mother-in-law says the next few years of a child's life are magical. Gone are the nappies and (mostly) the tantrums. The remnants of attachment begun in the womb - breastfeeding, frequent demands to be picked up - have faded into the past. Instead, along with every cuddle comes a heart-tug of memory, without the physical drain of those early years.
And the character of the child is there to see. They're still the baby you gave birth to; they still look to you for guidance, and help when it's needed. But the person they are - and who they're going to be - is in plain sight.
After four years of getting to know each other, we can say that Austin is already unmistakeably himself.