High Progesterone levels can occur during pregnancy, but they do not solely indicate pregnancy. Progesterone is a hormone that plays a vital role in supporting pregnancy. During pregnancy, the placenta produces Progesterone to maintain the uterine lining, support the growth of the fetus, and prevent the shedding of the uterine lining that occurs during menstruation. High Progesterone levels can be observed in early pregnancy and continue throughout gestation. However, it is important to note that high Progesterone levels can also occur in other situations, such as during the luteal phase of the menstrual cycle or in certain medical conditions. The most reliable way to confirm pregnancy is through a pregnancy test, which detects the presence of the hormone human chorionic gonadotropin (hCG) in the body. hCG is specifically produced by the developing placenta and is a reliable indicator of pregnancy. If you suspect you may be pregnant, it is advisable to take a pregnancy test or consult with a healthcare professional for accurate confirmation. They can provide appropriate testing and guide you through the process of confirming pregnancy based on your individual circumstances.