The change of progesterone estradiol after embryo implantation will gradually increase with the prolongation of pregnancy, if the value of progesterone is 10nmol/L after implantation, the value will increase to 20nmol/L around 30 days of pregnancy, if the progesterone is too low, it will cause the aura of miscarriage, progesterone should be injected under the guidance of doctor to supplement progesterone to prevent miscarriage. If the estradiol value is greater than 200nmol/L after successful transplantation, and the estradiol value is as high as 1000nmol/L with the prolongation of pregnancy, if the estradiol is low, it may be an ectopic pregnancy or an aura of miscarriage, so you can go to the hospital for ultrasound to exclude ectopic pregnancy, and you also need to observe to see if there is vaginal bleeding, if bleeding is considered to be a preterm miscarriage, and you need to keep the baby in time. During pregnancy, blood tests for progesterone and estradiol need to be done on an empty stomach to avoid affecting the test results after eating.