At 10 weeks of pregnancy, a fluid dark area near the gestational sac requires prompt fertility preservation treatment. At 10 weeks of pregnancy, an ultrasound examination reveals a fluid dark area around the gestational sac, which indicates a small amount of uterine bleeding, and it is possible that a preeclampsia has occurred. When miscarriage with preeclampsia occurs early in pregnancy, the patient may feel vague abdominal pain, there may be a small amount of vaginal bleeding, and an ultrasound may reveal that there is a dark area of fluid around the gestational sac. If it is determined that it is a preeclamptic miscarriage, further tests need to be done, such as blood tests for thyroid function and progesterone, and then fertility preservation treatment will be carried out. If it is luteal insufficiency that has caused the preeclampsia, progesterone supplementation medication is needed, such as dextroprogesterone or progesterone can be taken under doctor’s supervision, or progesterone injection can also be given. If the thyroid gland is hypothyroid, need to regulate the function of the thyroid gland, you can take levothyroxine sodium tablets under the guidance of the doctor. During the medication, the dose of the drug should be strictly controlled, and the thyroid function should be rechecked regularly. If you have a preeclampsia, you should pay attention to bed rest, not to do strenuous exercise, not to have sex again, and pay attention to keep the bowel movement smooth.