How accurate are early ultrasounds for conception dating
Read more See 1 more doctor answer With an LMP of "05/05/18" and an ultrasound on 06/15/18 showing fetus at "5w6d", the probable conception occurred between May 17 and May 21, which allows for the life of viable sperm occurring just prior to ovulation, and the length of time the egg is available for fertilization. Read more Er and ob/gyn are both accurate for gestational age; typically transvaginal is more accurate than transabdominal.Ultrasound performed in the er in early pregnancy are typically ordered to confirm whether or not you are pregnant, and how far along you are.Conception dating is not something that is useful in medicine and there is too much variability to do that kind of dating, Unless you are an In Vitro (IVF) pt. You may now see our list and photos of women who are in your area and meet your preferences.) the fetus is clearly seen on trans-vaginal ultrasound and the heart beat can be seen at this early stage (90 to 110 beats per minute under 6 to 7 weeks, then 110 to 200 beats per minute as the baby matures).the baby and its heart beat can be detected relatively easily with trans-abdominal and trans-vaginal examination.
Most dating scans are done with a trans-abdominal transducer and a fullish bladder.Also the fetus cannot bend and twist too much yet, so the length of the body is fairly constant.However, the accuracy of the ultrasound examination is always dependent on the skill of the sonographer and the quality of the equipment.There must be a reason and i would direct you to your OB to confirm why this was done in your situation. Read more Ultrasound done early is much better than LMP dating for the "Expected date of Delivery." Conception is another issue entirely.
Usually conception occurs 2 weeks prior to a missed LMP, but this is ONLY an estimate.
Depending on how premature, how sick, and how lucky or unlucky a baby is, he can get brain problems, cerebral palsy, blindness, deafness, developmental problems, learning disabilities, severe lung diseases, infection and loss of some intestines, etc...