How accurate was your due date prediction?

Question

Hi all.
I follow my cycle like clockwork so I know exactly when I ovulated. For those of you that have done the same, how far out were your predictions when you had they dating scan please? I’d love to be spot on but imagine not many people can be ☺️

Answer

Because I had to see a fertility specialist for this pregnancy (I’ve had four miscarriages in a row), I know EXACTLY when I ovulated (confirmed via bloodwork and ultrasound)- my ultrasounds have been spot on.

Answer

I had myself at 8w5d, I was unsure if I ovulated on CD10 or 11, but knew it was one or the other as I got a positive OPK on CD10, and a negative on CD12 (couldn’t test on CD11 of course to see if it was positive or negative lol). Dating scan had me at 8w4d, so pretty damn accurate haha

Answer

Mine was spot on 😊 I went by my ovulation date, as I have very long cycles. Got a scan today and EDD came back exactly what I had predicted!

Answer

With my first baby, he always measured about 3 days ahead based on ovulation(2 days ahead based on LMP, which is what the doctor used for due date), but was born 9 days before the due date, so it's all up in the air.

Answer

This is so interesting, thanks for asking! I’m wondering the same and won’t know until Oct 8. I ovulate later than normal and with my first kid they went off LMP even though I told them exactly when I ovulated. This time I ovulated a whole week late so I lied to my OB about LMP. Soooo we’ll see!

Answer

Off by 3 days

Answer

Tracked ovulation with OPKs and was estimating myself at 6w2d when I had my first ultrasound. I measured 6+1

How accurate was your due date prediction?

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