been thinking about this

[junebaby08]

ok so some of you have follow me since ttc, well i have irregular cycles never know when af was coming sop couldnt go by oh af is late, so my question is i had my first u/s that confirmed i was 6 weeks( if i went by af i would be 8 weeks), and i just went for my 14 week appt and doc said uterus measured 2 weeks ahead, well since i couldnt go by af on how far along i was at first thats why we did the first u/s and i was only 6 weeks, so what im saying is if i went by af i would be 17 weeks 4days, is it possible i could actually still be that fair along?? or with the 6 week u/s that was correct and never wrong?? i have been wondering about this, i know ill get the measurments and all that at anatomy scan

 

[CharlieKeys]

You can measure ahead for lots of reasons Hun ... The only way to really tell is by an US

 

[junebaby08]

bumpy bump

 

[junebaby08]

bump

 

[Yo_Yo]

I guess by measuring the uterus he checked the fundal height?

That was not very reliable for me with dd2, as I was a month behind at some points on fundal height with dd2.

Scans are more accurate at dating than fundal height, though it could be out a few days too-perhaps your actually somewhere between the two dates?

 

[ElOrance]

So I had an ultrasound at 6 weeks and another at 7 (for reasons that aren't important); between those ultrasounds the baby grew over 2 weeks worth in the space of 1 week. Which is good since it seemed too small at the 6 week one based on my dates.

Point being a lot of growing takes place around that time, and your 6 week ultrasound may well have been measuring behind and the baby caught up. Maybe it's not a whole 2 weeks ahead of where you thought but closer to 1. At any rate the 6 week scan can be at least a week off from personal experience.

 

[Tigerlilyb]

Fundal height is really inaccurate so I wouldn't put too much stock into it. Early ultrasounds (before 12 weeks) are the most accurate way to date a pregnancy since most babies grow at a pretty set rate before following their own rate after first trimester.