what happens during 12_week ultrasound ??

At just 12 weeks, your baby is only about the size of a lime. But during one ultrasound, doctors can already see the heartbeat, tiny fingers, and even early movements. So what exactly happens during a 12-week scan? First, a clear ultrasound gel is applied to the mother's abdomen. The sonographer gently moves an ultrasound probe across the skin. The probe sends harmless high-frequency sound waves into the uterus, and echoes returning from the baby are instantly converted into real-time images on the screen. At 12 weeks, the baby is fully formed but still very small. Doctors confirm that the baby is alive by checking the heartbeat, which normally ranges between 120 and 180 beats per minute. They carefully measure the baby's crown-to-rump length to estimate the due date as accurately as possible. The scan also checks the baby's head, spine, arms, legs, stomach, bladder, and early brain development. The amount of fluid behind the baby's neck, called the nuchal translucency, may also be measured as part of early screening for certain chromosomal conditions. For many parents, this is the unforgettable moment.