At what stage of fetal development can the mother's heartbeat be detected with a fetoscope?

The detection of a mother's heartbeat with a fetoscope typically occurs around 20 weeks of gestation. At this stage, the fetal heart has developed sufficiently, and the mother's abdomen has expanded enough to allow for the clear transmission of sound. The fetoscope is a specialized tool designed to enhance the teacher's ability to listen to fetal sounds, including the heartbeat, which can be distinguished from the mother's heartbeat.

Before 20 weeks, while it is possible to detect the fetal heart rate using other methods such as transvaginal ultrasound, the fetoscope may not yet be effective due to the size of the fetus and the position of the uterus. After 20 weeks, the visibility and audibility of the fetal heart rate through the fetoscope become more consistent, allowing healthcare providers to monitor fetal well-being more effectively as the pregnancy progresses.