Progesterone is a hormone, without which pregnancy would never have occurred, since a fetal egg could not attach itself to the wall of the uterus. It is progesterone in charge of preparing its internal epithelium for implantation of the embryo.
Progesterone, in addition, is responsible for the normal development of the fetus, especially in the first trimester of pregnancy, while the placenta is not yet fully formed. And while the placenta is not ready for its functions, progesterone is produced by the follicle , from which a mature egg emerged. The concentration of progesterone in the blood is growing steadily. And when the placenta ripens, it takes on the production of this hormone.
Rates of progesterone by weeks of pregnancy
The level of progesterone is determined by performing a blood test using the immunofluorocene method. This analysis is not mandatory in pregnancy and there are no strict deadlines for it. It is carried out in the presence of a doctor's suspicion of progesterone insufficiency, or, conversely, its excess.
To take the test for the level of progesterone for weeks of pregnancy, it is necessary to appear on an empty stomach, and for two days will stop taking hormonal medications. It would be superfluous to exclude emotional and physical stress, smoking.
So, the level of progesterone for weeks during pregnancy (table):
| progesterone in the first week of pregnancy | 56.6 NMol / l |
| progesterone in the second week of pregnancy | 10.5 Nmol / l |
| progesterone at 3 weeks of gestation | 15 NMol / l |
| progesterone at 4 weeks gestation | 18 NMol / l |
| progesterone at 5-6 weeks of gestation | 18.57 +/- 2.00 nmol / l |
| progesterone at 7-8 weeks of gestation | 32.98 +/- 3.56 nmol / l |
| Progesterone at 9-10 weeks of gestation | 37.91 +/- 4.10 NMol / l |
| Progesterone at 11-12 weeks of gestation | 42.80 +/- 4.61 NMol / l |
| Progesterone at 13-14 weeks of gestation | 44.77 +/- 5.15 NMol / l |
| progesterone at 15-16 weeks of gestation | 46.75 +/- 5.06 mmol / l |
| progesterone at 17-18 weeks of gestation | 59.28 +/- 6.42 NMol / l |
| progesterone at the 19-20th week of pregnancy | 71.80 +/- 7.76 NMol / l |
| Progesterone at 21-22 weeks of gestation | 75.35 +/- 8.36 NMol / l |
| Progesterone at 23-24 weeks of gestation | 79.15 +/- 8.55 NMol / l |
| progesterone at 25-26 weeks of gestation | 83.89 +/- 9.63 NMol / l |
| Progesterone at 27-28 weeks of gestation | 91.52 +/- 9.89 NMol / l |
| progesterone at the 29-30th week of pregnancy | 101.38 +/- 10.97 mmol / l |
| progesterone at 31-32 week of pregnancy | 127.10 +/- 7.82 NMol / l |
| progesterone at 33-34 weeks of gestation | 112.45 +/- 6.68 NMol / l |
| progesterone at 35-36 week of pregnancy | 112.48 +/- 12.27 mmol / l |
| progesterone at 37-38 week of pregnancy | 219.58 +/- 23.75 nmol / l |
| Progesterone at 39-40 weeks of gestation | 273.32 +/- 27.77 NMol / l |
If there is a deviation in one direction or another of the concentration of progesterone relative to the norm, it can signal
Reduced progesterone is observed in case of threat of miscarriage, ectopic pregnancy, undeveloped pregnancy, delay of fetal development , pregnancy retardation, pregnancy complications (gestosis, FPN), chronic diseases of the reproductive system.
However, one can not draw conclusions only on the basis of the concentration of progesterone. This analysis should be performed in conjunction with other studies - ultrasound, dopplerometry and so on.