Overdue: What Happens When You Pass Your Due Date
The estimated due date has arrived — and the baby keeps you waiting. For many pregnant women this is a test of patience, often accompanied by questions from those around them and growing impatience. Yet a passed due date is, as a rule, no cause for concern but the normal case.
The <a href="/en/due-date-calculator">due date calculator</a> shows you in its countdown how many days you are already past the due date — it keeps counting beyond the estimated date, too.
Why the due date is so often exceeded
Only about 4% of babies are born exactly on the estimated due date. The vast majority of births are spread over the weeks before and after, and exceeding the date is completely normal. One reason lies in the calculation itself: the Naegele rule assumes a 28-day cycle with ovulation on day 14. If you had a longer cycle or a later ovulation, your calculated date tends to be a little too early — the baby is then simply not as far along as the calculation suggests.
This is why the ultrasound dating done by the doctor is so important: it determines the age of the baby very accurately in the first weeks and corrects an unsuitable calculated date. The decisive figure is always the dating set by the doctor, not the plain Naegele estimate.
When is a pregnancy considered post-term?
A birth between the completed 37th and the end of the 41st week is considered on time. Experts only speak of a true post-term pregnancy from the completed 42nd week (from 42+0) — that is, roughly two weeks after the estimated due date. The days between the due date and the 42nd week are medically unremarkable; most babies arrive on their own within this span.
How medical monitoring works
To make sure mother and child are doing well even when the date is exceeded, care becomes more closely spaced. Usually from the estimated due date, at the latest a few days afterwards, regular checks take place: a CTG records the baby's heartbeat and any contractions, and an ultrasound checks the amount of amniotic fluid and the baby's wellbeing. As long as these examinations are unremarkable, there is usually nothing against waiting a little longer.
As the pregnancy approaches the 42nd week, your doctor will discuss with you whether inducing labour makes sense. When and how labour is induced is an individual decision that depends on your situation, the baby's condition and your wishes.
Stay calm — and ask questions
A passed due date is usually a sign of patience, not of danger. The regular checks ensure that any need for action is recognised in good time. During this period, pay particular attention to the baby's movements and contact your gynaecologist or the maternity clinic immediately if activity decreases, movements stop or anything else seems unusual.
All the figures in the <a href="/en/due-date-calculator">due date calculator</a> and in this guide are a non-binding orientation and do not replace a medical diagnosis. When your due date approaches or has already passed, your midwife or gynaecologist is the right person to answer all your questions.