What is the normal value of progesterone in early pregnancy?

We know that the progesterone level is very important for women who want to get pregnant. It allows the egg and sperm to combine with each other and eventually form a fertilized egg. It can also prevent miscarriage. Therefore, women are more concerned about the normal value of early pregnancy progesterone after pregnancy. Next, let the experts take you to understand its normal value. I hope everyone can find what they want to know through this article.

Normal progesterone levels after pregnancy

Normal progesterone values ​​after pregnancy During pregnancy, HGG (human chorionic gonadotropin) in the pregnant woman's body will stimulate the corpus luteum to produce progesterone; from 7 to 9 weeks, it gradually transitions to placenta production, also known as luteal placental transfer; from 10 to 11 weeks, the placenta produces a significant increase in progesterone, at this time the trophoblast cells of the placenta take over the corpus luteum to produce progesterone and maintain pregnancy.

Normal reference value:

Determination time Sample Old system unit Normal value Old and new coefficient Legal unit Normal value Old and new coefficient

Follicular phase blood 0.2～0.6ng/ml3.180.6～1.9nmol/L0.3145

Luteal phase blood 6.5～32.2ng/ml3.1820.7～102.4nmol/L0.3145

7 weeks of pregnancy blood 24.57.6ng/ml3.1276.423.7nmol/L0.32

8 weeks of pregnancy blood 28.67.9ng/ml3.1276.423.7nmol/L0.32

Follicular phase blood 24.57.6ng/ml3.1289.224.6nmol/L0.32

9-12 weeks of pregnancy blood 38.013.0ng/ml3.12118.640.6nmol/L0.32

13-16 weeks of pregnancy blood 45.514.0ng/ml3.12142.043.7nmol/L0.32

17-20 weeks of pregnancy blood 63.314.0ng/ml3.12197.543.7nmol/L0.32

21-24 weeks of pregnancy blood 110.935.7ng/ml3.12346.0111.4nmol/L0.32

25-34 weeks of pregnancy blood 165.335.7ng/ml3.12514.8111.4nmol/L0.32

35 weeks of pregnancy blood 202.047.0ng/ml3.12630.2146.6nmol/L0.32

Menopausal blood <1.0ng/ml3.18<3.2nmol/L0.3145

13-36 weeks of pregnancy amniotic fluid 55ng/ml3.12171.6nmol/L0.32

Full-term pregnancy amniotic fluid 26ng/ml3.1281.1nmol/L0.32

By testing the progesterone value in the serum, it is possible to monitor and diagnose embryonic arrest or ectopic pregnancy in early pregnancy. Generally, patients with serum progesterone values ​​less than 15ng/ml have a higher rate of failure in preserving pregnancy. For patients with serum progesterone values ​​between 15-30ng/ml, active treatment with progesterone, HCG, etc. has a higher success rate. Patients with serum progesterone values ​​greater than 30ng/ml do not need drug treatment.

But one thing we must remind everyone is that in the entire menstrual cycle of a normal non-pregnant woman, the progesterone level is lowest before ovulation, starts to rise after ovulation, and is highest during the luteal phase. Before ovulation, the progesterone level in body fluids should be less than 2 ng/mL, and after ovulation it should be greater than 5 ng/mL. If you become pregnant, the progesterone level will initially remain at the level of the luteal phase. After the placenta is formed, the hormones secreted by the placenta will cause the progesterone level in the pregnant woman's body to rise to 100-200 ng/ml, which is dozens to hundreds of times that of a non-pregnant woman. Therefore, when you go to the hospital for a progesterone test, you must first be aware of your physical condition and pay close attention to changes in your body.

I hope that after understanding the normal value of progesterone in early pregnancy, everyone can go to the hospital regularly for relevant examinations. Once low progesterone is found, it is necessary to supplement it in time to increase the value. This can avoid the occurrence of miscarriage. In addition, we need to note that women with low progesterone feel very uncomfortable, so pregnant women who feel uncomfortable should go to the hospital for examination and treatment immediately.