The first trimester comes with its own quiet admin, and the third comes with a deadline that starts to feel real. The second trimester sits in between (less urgent than the final stretch, past the earliest scramble), which makes it the natural window to get ahead on things that don't need to happen today but shouldn't be left until they do.
That's antenatal classes worth booking before they fill up, decisions about childcare or leave that take a while to land on, nursery or room planning that's easier without a deadline breathing down your neck. This roadmap lays out what fits this window specifically, so the middle trimester gets used rather than just passed through. It's a planning tool, not a medical one — for anything about how the pregnancy itself is progressing, your midwife or doctor is the one to ask. Just try it: set your due date and see what belongs in this stretch.