Ultrasound Accuracy

5 Replies
Kbz - August 21

I had a period 12/3 and then I was suppose to have my next period on 12/30 but instead i had some bleeding on 1/7 (don't remember how long it lasted or how normal it was) i tested positive on 2/12 because I was suppose to get my period on 2/5 according to my period calendar. They never gave me a dating scan just went off the bleeding I had 1/7. I didn't have an anatomy scan till June 9th at 21 weeks an I measured 21weeks 5 days. Is there anyway I could have conceived from sex 12/11-12/13 and the ultrasound measurements just BE OFF 4 or so weeks an the dr not able to notice a discrepancy an them thinking he was 21 weeks instead of actually being 24-25 weeks? I know the later you have an ultrasound the less accurate they are? Please share your knowledge cause I am not very educated in the conception, fetal growth or ultrasound department. 

 

Kbz - August 21

Not to mention I had horrific all day sickness for 2 months. Couldn't eat/drink anything an Hardley got off the couch. Literally just slept those 2 months away

 

Grandpa Viv - August 21

That ultrasound ties back to a period Jan8th, which is when you report a bleed. I think it quite unlikely that the scan was off by a whole month. Pregnancy would have resulted from sex in the Jan 15 thru 23rd window. 

 

Kbz - August 21

I had just been seeing that implantation bleeding can be mistaken for a period.. And that drs can't really tell if your baby is behind in growth or has symmetrical iugr unless you've had a dating scan. Which I didn't. And I didn't know if any of that could have made a difference or how bad my morning sickness was, if that could effect the fetal growth in any way. My fundal height has been right according to the PA. But I tried asking her why she goes from the top of the uterus all the way down to where my vagina starts. I thought she was suppose to do it at the hairline/bikini line? But she just shrugged off my question and told me she'd see me in 2 weeks.

 

Kbz - August 25

?? 

 

JessieJames - October 4

Grandpa VIV I need your advice 

 

So unfortunately I didn't get my first ultrasound until I was about 19 weeks , my ultrasound tech stated I was measuring 20wks and 2 days and changed my due date. But here's the kicker , my doctor sent him the wrong LMP dates , she stated my LMP was (March 3rd) when I told her countless times before my appointment that it was wrong and it actually started (Feb 25th) . So going off of the (mar 3) LMP the ultrasound tech changed my due date which he later said he never would have done because there was only a 7 day discrepancy based on my actual LMP (Feb 25) which would have gave me an EDD (estimated due date) of December 2nd. Now down the line I've had another US and I noticed another LMP date on my chart stating (Feb 1not sure how that got there but anyway , this ultrasound has me at 33w 4d , a whole week ahead of the changed due date , and 2 weeks ahead of the due date that should have never been changed. At this point Iam just frustrated and confused can anyone shed some light on this ??

 

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