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It is basically a reconfigured stethoscope that works by amplifying the sound of your baby's heartbeat.
It's noninvasive and allows your doctor to monitor your baby’s heart, causing no harm to your baby.
Transabdominal ultrasound (TAU) and also the transvaginal ultrasound (TVU) are valuable diagnostic tools in obstetrics and gynecology.
Transabdominal ultrasound will provide a panoramic view of the abdomen and pelvis and is noninvasive, whereas transvaginal ultrasound provides a more limited pelvic view and requires insertion of a probe into the vagina.
You may have a earlier scan, if you are experiencing pain or bleeding for example or unsure of LMP dates.
Below are scan pictures taken during the early weeks of pregnancy.
Measurements taken at these early scans will help to; confirm a pregnancy, date the pregnancy and to see any problems that may occur in the pregnancy ( low lying placenta, twins etc.).
Sometimes the baby’s heartbeat will not be clearly audible until seven or even eight weeks.
The first trimester is months one, two, and three of your pregnancy.