Can a dating ultrasound be wrong adventureswithdating com
The date of conception can't actually be determined, but the fetal growth usually reflects how far along the mother to be is , so i believe an ultrasound is pretty accurate. If you have your first U/s at 8 months it is not nearly as accurate as babies vary so much in size.
So at 7 weeks it is only going to be inaccurate by 3 or 4 days.
Ladies, who want to be sure of their date of delivery, cannot rely entirely on the manual cervical check – a manual checking done by the doctor to feel the softness and length of the cervix with the finger to determine the date of the delivery.
Also, the changes that start happening in the cervix are internal and not external.
If it is an early scan you must have got pregnant the month before.
If it is a late scan (after 30 weeks) you may have a big baby. ultrasound scan will show if you have had a miscarriage.
Ultrasound scan requirements vary depending on the type of ultrasound.
For example, for a pregnancy ultrasound, the woman is expected to drink 4 glasses of water and not relieve her bladder for an hour before the scan.
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This must be performed by a trained user, a physician or a radiologist.