So much can happen in five months.
Although I viscerally knew the twins were itty bitty when they came home from the hospital, I was just scrolling through some of their early photos and find myself shocked at how small they were.
Compare; their first day home from the hospital:

After a few weeks at home:

And at four-and-a-half months old:

At this point, one baby comfortably fits in the co-sleeper, facing north-to-south. They don’t fit east-to-west anymore; they push their heads against the far side while resting their feet on the bottom bar.
I already can’t believe they were ever small enough to fit in my uterus.