One of Denis' caregivers from the day care is pregnant. I noticed a couple of weeks ago. I haven't said anything to Denis or to the caregiver as it did seem to be early days yet.
On Thursday, as we were driving home, Denis says, "SH. has a baby in her tummy". And then he says, "Baby not get cold in there. SH keep baby warm, too cold for baby (pointing out the window of the car)".
I love the reasoning of 3 year olds.