What is the normal progesterone level after embryo transfer?

A small proportion of women are unable to conceive naturally after marriage. Nowadays, many opt for in vitro fertilization (IVF) to achieve pregnancy. While IVF can assist women in becoming pregnant, patients often wonder about the normal progesterone levels following embryo transfer. So, what are the normal progesterone levels after embryo transfer?

What Are Normal Progesterone Levels After Embryo Transfer?

“Transfer” here typically refers to embryo transfer during IVF treatment. Following embryo transfer, normal serum progesterone levels generally exceed 20 ng/mL. However, there is no single fixed “normal” value—levels above 20 ng/mL are generally considered adequate. If progesterone falls below 15 ng/mL, the risk of miscarriage increases and the likelihood of successful implantation decreases.

Progesterone—also known as the “pregnancy hormone”—reduces uterine smooth muscle sensitivity and supports embryonic growth and development, thereby enhancing the success rate of embryo implantation. After embryo transfer, progesterone levels gradually rise as the embryo develops. During mid-pregnancy, progesterone reaches moderate concentrations and remains elevated until delivery. If progesterone levels are low, supplementation under a physician’s guidance—such as intramuscular progesterone injections—is essential to support pregnancy and improve implantation success.

After embryo transfer, it is crucial to rest adequately and avoid strenuous physical activity. We hope this information is helpful to you.