Generally speaking, the appearance of fetal bud is 6-7 weeks of pregnancy, and the appearance of fetal heart is 7-8 weeks of pregnancy. Most pregnant women start to have early pregnancy reactions such as nausea, vomiting, acidity, drowsiness and aversion to grease in the 6th week of pregnancy, so it is normal for pregnant women to have symptoms such as drowsiness and fatigue after the appearance of fetal heart and fetal bud in early pregnancy. In the early stage of pregnancy, pregnant women cannot feel the fetal heart and fetal movement, so they cannot judge whether the fetal heart is growing or not by the symptoms. If some pregnancy reactions of pregnant women are more serious, it may only suggest that the embryo is live, but eventually we need to rely on ultrasound examination to confirm the diagnosis. For women with regular menstrual cycles, you can have an ultrasound examination of the uterine appendages around 42 days after menopause to check the development of the gestational sac, fetal heart and fetal buds, and whether there is ectopic pregnancy or embryonic abortion, and come to the hospital regularly for routine obstetric examinations to ensure normal fetal growth and development during pregnancy.