At 70 days pregnant the fetus is generally in an unstable state. At 70 days of pregnancy, or 10 weeks of pregnancy, it is still in the early stages of pregnancy and is in an unstable state. Generally in the first 12 weeks of pregnancy the fetus is unstable, and if it is affected by external adverse stimuli, there is a possibility of abnormalities such as preeclampsia, miscarriage and embryonic arrest. After 12 weeks of pregnancy, the placenta has been formed, and the placenta is able to secrete the nutrients needed during pregnancy. The development of the fetus is relatively stable, and the probability of miscarriage in the absence of strong external stimuli is relatively small. Early pregnancy must pay attention to rest, avoid heavy labor, strenuous activities and sexual intercourse. You can do soothing exercises, pay attention to nutritional supplements, and have regular checkups.