Ultrasound Results vs. Conception Date Not Correlating

[cajun01]

Well, I went for my first ultrasound today, becuase i haven't had my period since 31 August.  The ultrasound results show that I am in early pregnancy.  I compared to some u/s pics on the net and it looks like about 5 or 6 weeks.  BUT, last time hubby and I did 'the deed' was around October 20th (we had a dry spell due to fighting), so I MUST have conceived around then, which would put me at around 8 weeks.  The u/s tech didn't show me everything she saw; all I got to see in the u/s was the yolk sac; no embryo.  I know this two week discrepancy doens't seem like much, but I was really hoping to see a tiny figure this morning on the screen!  So I am confused because the u/s and likely conception period do not match.  

Any ideas anyone??

[Christie2004]

You really can't, as a lay person, try to compare what you see on the internet with what the EXACT measurements are that the tech takes at the time of the actual ultrasound, done on YOU and YOUR fetus.

Go by what YOUR ultrasound says.  A discrepancy of several weeks is huge if done early in pregnancy.  Your doctor is the best one to try to figure out what and why there is a discrepancy, if in fact the actual report seems to indicate one.

Good luck!

[jennnix]

The same thing happened to me today at the dr.'s office--   My dr. thought that I was coming in for my first ultrasound at 7 weeks, but my ultrasound put me at about 6 weeks.  This makes perfect sense to me because I ovulate late (like day 17 instead of 10 for many women), so ofcourse I am a week behind their "averages" and estimates using only my last period as a date to start with.  It freaked me out, though, because now I have to go back in 10 days for another ultrasound to make sure that my baby is growing.  They kept using the term, "size date discrepancy" and it made me a nervous wreck!  I saw the heartbeat, though, and I feel great.  I guess at this point I just keep praying that all is well at the next appointment.  YOU know YOUR body.  I think we will always have a hunch more than modern technology can show about our due dates!   :)