This is so common. You may know the date of your last period, you may even know the exact date you conceived. Yet, a midwife or sonographer may change this, often making estimated due dates earlier than we expected.
These estimated due dates are the first thing we know about our babies. It is so exciting and often mums remember this date even once their baby arrives (statistically only 4% arrive on their estimated due date)
The world health organisation (WHO) defines a normal length of pregnancy anywhere between 37 and 42 weeks. So why do we put so much pressure on baby arriving ‘on time’ and 1 day past defines our babies as ‘late’.
Read more at - https://www.kghypnobirthing.com/pregnancy-information/planning-your-birth/is-your-due-date-a-fallacy.html