Ideally, progesterone is 20ng/mL or more on day 40 of pregnancy, but there is no prescribed range because everyone’s hormone levels are different, so the value of progesterone may be different. As long as intrauterine pregnancy is confirmed and there is no abnormal bleeding or pain in the lower abdomen it can be observed. Because low progesterone does not necessarily mean that the pregnancy will be aborted or that the fetus will be adversely affected, the value of progesterone only reflects the early hormonal levels of pregnancy in the body and is not fully representative of the condition of the child. If the progesterone level is too low, you can take dydrogesterone or progesterone injections under the guidance of your doctor to quickly replenish the progesterone in the early stages of pregnancy. You can also supplement foods containing soy isoflavones as well as vitamin E, such as soybeans, grapefruit, strawberries, kiwi, etc. Pregnant women should pay attention to reducing exertion, avoiding heavy physical labor and taking sufficient rest to gradually restore progesterone to normal level.