Have you gone to first prenatal visit and baby measured bigger or smaller?

Question

I'm just curious.. if you're usually regular with your period and have thought to ovulate around the correct time, is it possible for baby to measure either bigger or smaller? Or it is pretty correct since you are regular? Thank you!

Answer

I actually ovulated a week ahead of what I thought I did so my baby was measuring a week ahead, which is normal, sometimes we think we are on track with our bodies but unless you took ovulation tests each day and didn't rely on an app there's not way to tell when you actually ovulated as compared to when you think you ovulated.

Answer

Early scans have a margin of error of +/- 3-5 days (since they are measuring millimetres - super tiny!)

Answer

My first scan I thought I was 8weeks, was measuring 7w3d so I was 4 days off.

Answer

Standard deviation is 3-5 days either direction to account for ovulation, implantation etc as those things aren't exactly predictable.

I have been pregnant 3 times and each initially measured either dead on or within 2 days of what my LMP said.

Have you gone to first prenatal visit and baby measured bigger or smaller?

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