Initially, you need to know the terminology that your doctor uses when referring to the "age" of your growing baby.Estimated gestational age (EGA) refers to the length of pregnancy after the first day of the last menstrual period (LMP) and is usually expressed in weeks and days.Advanced Ultrasound – This exam is similar to the standard ultrasound, but the exam targets a suspected problem and uses more sophisticated equipment.Doppler Ultrasound – This imaging procedure measures slight changes in the frequency of the ultrasound waves as they bounce off moving objects, such as blood cells.However, just as every woman is different, every pregnancy develops differently.This information should be used as a general guide for healthy pregnancy development, although development may vary due to the mother’s health or a miscalculation of ovulation.' In previous decades, a stethoscope-like device was the only available tool, and only the doctor could actually hear the heartbeat.Today, modern technology such as the fetal doppler and obstetrical ultrasound enable earlier detection of the heartbeat, and moms can also listen in on those exciting first heart sounds of their baby.
[However, please note that some duplication between FAQs was necessary in certain spots.]"The technology of prenatal diagnosis is usually presented to us as a solution, but it brings with it problems of its own..technology of prenatal diagnosis has changed and continues to change women's experience of pregnancy." All pregnant women in our technology-happy modern society face confusing choices about prenatal testing, its advantages and disadvantages, and its appropriateness for them.Most often used during the early stages of pregnancy.Standard Ultrasound – Traditional ultrasound exam which uses a transducer over the abdomen to generate 2-D images of the developing fetus .This FAQ covers ultrasound information and issues specific to women of size.Big moms are STRONGLY urged to read the FAQ on Ultrasound Safety and Accuracy BEFORE reading this FAQ, so that they can better understand the benefits and risks of ultrasounds before reading about their implications in women of size.An ultrasound exam is a procedure that uses high-frequency sound waves to scan a woman’s abdomen and pelvic cavity, creating a picture (sonogram) of the baby and placenta.