Besides catching up and comparing notes, Duncan wanted to send another message in the caption she wrote to accompany this Facebook photo. "Each women carries different and this most certainly doesn't mean one is doing something wrong or not healthy etc. We both have healthy growing babies & we both have had incredible pregnancies so far, feeling amazing & full of energy."
At the time the photo was taken, Nat was about 25 weeks pregnant. Duncan was 21 weeks. Wow!
Here's Duncan at 36 weeks.
Duncan is due at the end of March. Wonder what how she will greet her baby? Scroll through the rest of the gallery below to see how people reacted to their newborns!