Your Real Due Date: What Every Pregnant Woman Should Know After Her 12-Week Scan

Your dating scan is important — but it isn’t always accurate. Understanding how due dates are calculated (and when to trust your own timing) can make a real difference later in pregnancy.

Just had your 12-week scan? Congratulations — what a moment.


But before you settle into the “official” due date you’ve been given, it’s worth knowing this:

Scan measurements can shift your dates by up to a week (or more).
And while that might feel small now, those few days at the end of pregnancy are often exactly when induction pressure begins.

This short, practical guide shows you:
✅ How dating scans estimate your due date — and why they’re not always precise
✅ When to question or amend your due date if you have longer cycles or know conception
✅ How accurate dates protect you from unnecessary induction recommendations later
✅ A simple trick to reduce pressure from friends and family during the final weeks

Every pregnant woman deserves this information early — before decisions later in pregnancy are shaped by dates that don’t match her body.

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