How accurate are early ultrasounds in dating pregnancy marriage and dating communication

However, if you have a larger than average baby, the ultrasound will apply the husky figures to the “normal” measurements.

In other words, by comparing your baby’s measurements to the data from this large collection of measurements, the ultrasound can then tell how far along your baby is.

Most dating scans are done with a trans-abdominal transducer and a fullish bladder.

If the pregnancy is very early the gestation sac and fetus will not be big enough to see, so the transvaginal approach will give better pictures.

I do have a retroverted uterus which from what the sonographers both said makes it a little harder to get a good look even though it was the vaginal ultrasound. ultrasounds are more accurate the earlier they are done. but being that it was difficult they could be off a bit. They may wait a few weeks and have you do another ultrasound to see if the baby is where they think it should be by the first calculation or they may change the due date.

Having an ultrasound in the first trimester of pregnancy can be a thrilling experience. Bear in mind that you may need a second ultrasound before you know for certain if all is well.

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