ultrasounds different dates

I went for an ultrasound earlier on in my pregnancy(6w6d). Is it possible for due dates to change from one US to another? The reason I ask is b/c when I was preg. with my 1st born I had 6 different due dates ranging a whole month apart. Any advise? Also I'm looking for May buddies!

I was always told to go by the earliest ultrasound due date. I had 4 different due date with my second son but my doctor was only going by the ultrasound date.

There is a may due date thread  and possible to have different due dates yes if baby is in bad position to measure maybe

Quoting Autee Dörr:" I went for an ultrasound earlier on in my pregnancy(6w6d). Is it possible for due dates to change from ... [snip!] ... preg. with my 1st born I had 6 different due dates ranging a whole month apart. Any advise? Also I'm looking for May buddies!"

yes, but generally they go by the earliest due date... as growth and development then is the most consistent/reliable

My first due date was vaginal, b/c of baby being so little (gestational age). But now that I'm in another state they told me that at that young 6w6d the baby's due date could differ. I have my next US on the 21st of nov. so I was wondering if duer dates change should keep the May 16th due date as given at the first US?

<blockquote><b>Quoting Autee Dörr:</b>" My first due date was vaginal, b/c of baby being so little (gestational age). But now that I'm in another ... [snip!] ... next US on the 21st of nov. so I was wondering if duer dates change should keep the May 16th due date as given at the first US?"</blockquote>



If your period is regular (every 28/30 days) you could just go by that too.