I am wondering how accurate transvanginal ultrasounds are? and if it is possible for them to be off by a whole month? or if it is even possible for a fetal heart beat to be dectected at 4 weeks? please help me out because i am not sure when i exactly ovulated and i really question the doctors estimates.
Hi, my doc did the trasnvaginal ultrasound twice - 4 wks apart & both during my 1st pregnancy & 2nd pregnancy - both showed that my due date is 3 days later than what my "calculated" ovulation time showed us - we never heard the heart beat of our 1st baby not at 5 wks & not at nearly 9 wks - we lost the baby ... we got pregnant immediateley there after - we had a heartbeat at 8 wks and at 12 wks - I waited specifically until I was 8 wks before I went to the doc the 2nd time - I read on a few websites that you will be hearing the heartbeat at 5 - 6 wks ... I just did not want to go though the same thing as with the 1st pregnancy.
Good luck & God Bless
it's very uncommon to see the heartbeat until at least 6 weeks and many don't see it until closer to 8 weeks. we were lucky enough to see it at 6 weeks 3 days.
the measurements in the first 12 weeks are very accurate actually, it's later ultrasounds that dating becomes very inaccurate.
we had IVF and so we know exactly when the embryo fertilized, etc.
my 6 week and 8 week US measurements were exactly correct (to the day)
This site complies with the HONcode standard for trustworthy health information.
The Content on this Site is presented in a summary fashion, and is intended to be used for educational and entertainment purposes only. It is not intended to be and should not be interpreted as medical advice or a diagnosis of any health or fitness problem, condition or disease; or a recommendation for a specific test, doctor, care provider, procedure, treatment plan, product, or course of action. Med Help International, Inc. is not a medical or healthcare provider and your use of this Site does not create a doctor / patient relationship. We disclaim all responsibility for the professional qualifications and licensing of, and services provided by, any physician or other health providers posting on or otherwise referred to on this Site and/or any Third Party Site. Never disregard the medical advice of your physician or health professional, or delay in seeking such advice, because of something you read on this Site. We offer this Site AS IS and without any warranties. By using this Site you agree to the following Terms and Conditions. If you think you may have a medical emergency, call your physician or 911 immediately.