At 4 weeks of pregnancy, most mothers do not have any special feelings, and only a small number of mothers with strong pregnancy reactions may experience early pregnancy symptoms. At this time, if you are not sure if you are pregnant, many friends will go to the hospital for a blood test, mainly to see the values of progesterone and hCG. These two values can not only accurately tell you whether you are pregnant, but also check the condition of your embryo. So, what are the reference values for progesterone and hCG at 4 weeks of pregnancy? Friends who want to know more, let's take a look together.
What is the reference value for progesterone at 4 weeks of pregnancy
The progesterone levels in women vary during each menstrual cycle, and each woman (regardless of pregnancy or not) also has differences in progesterone levels, even depending on age. So the value of progesterone obtained is only an average number. In general, progesterone levels in non pregnant women are 3.1ng/ml, but once pregnant, progesterone levels rapidly increase. Four weeks of pregnancy is considered early pregnancy, and progesterone levels should be at least around 30 and not lower than 20, otherwise there is a possibility of threatened miscarriage. Of course, this is just a reference value, with significant individual differences.
What is the reference value for HCG at 4 weeks of pregnancy
During the fourth week of pregnancy, a HCG value of 500-10000 is considered normal. A low HCG value is prone to miscarriage. Expectant mothers should pay more attention to balanced nutrition and rest in the early stages of pregnancy. HCG increases rapidly in the serum during early pregnancy, doubling in approximately 1.7-2 days, reaching its peak concentration at 8-10 weeks of gestation, and then rapidly decreasing after 12 weeks before maintaining a certain level.
Early pregnancy is a crucial period for fetal development, often overlooked by many pregnant women. So once amenorrhea occurs, one should immediately consider whether to conceive and confirm the condition of the embryo through progesterone and HCG values. Of course, the values provided by the editor above are only reference values. Everyone's physique is different and cannot be generalized. Please refer to the doctor's examination results for accuracy.
