What is considered a positive sign of pregnancy?

The auscultation of fetal heart rate is considered a positive sign of pregnancy because it is a definitive indicator that there is a developing fetus. This sign typically becomes detectable between 10 to 12 weeks of gestation using a Doppler device or a stethoscope. The presence of a fetal heartbeat signifies that the fetus is alive and developing, making it one of the most concrete signs of pregnancy confirming that the pregnancy is progressing normally.

While morning sickness, fetal movement felt by the mother, and weight gain can all be associated with pregnancy, they are not definitive indicators on their own. Morning sickness can occur in various conditions and may not indicate pregnancy in every case. Fetal movement, usually felt around 18-25 weeks of gestation, is a sign that can confirm pregnancy but is not as early or definitive as fetal heart rate. Weight gain can also be influenced by many factors outside of pregnancy and does not confirm its presence alone. Therefore, the auscultation of fetal heart rate stands out as a clear, objective sign of pregnancy.