The normal value of progesterone at 6 weeks of pregnancy is 20-25ng/mL and will gradually increase with the number of days of pregnancy. Progesterone is an indispensable progesterone hormone, and if the hormone level is too low, it may cause miscarriage. If the value of progesterone is not proportional to the number of days of pregnancy during pregnancy, you need to go to the hospital for examination and timely supplementation of progesterone for treatment, you can take progesterone capsules orally or inject progesterone injection intramuscularly for treatment and recheck after a week. You should also pay attention to eating more foods rich in natural progesterone levels, such as tofu, soy milk, black fungus, sea cucumber, black chicken soup and pigeon meat. In addition, an ultrasound can be done at 6 weeks of pregnancy to determine intrauterine pregnancy by seeing the intrauterine gestational sac under the ultrasound, and supplementation with folic acid until the third trimester can prevent fetal neural tube abnormalities.