When does nhs give you your due date

[Givemethesun]

Just that. Do they give it to you at the 12 week scan based on size measurements? Or do they give it to you at 8 week check in based on period/cycle length

At the 12 week scan 😊they'll give some indication before that based on LMP but the 12 week is the one that counts.

you will get an estimated due date at your booking appointment (based off LMP) but your 12 week scan will be the one they use for reference throughout your pregnancy x

Thanks both!!

The official and most reliable due date comes from the 12 week dating scan.
Until then, they will work with your LMP date as a guide.

LMP isn't always accurate though (mine is 10 days different to actual due date)