How long does it take to get pregnant before the yolk sac and embryo appear?

If the menstrual cycle rule is less than 30 days at ordinary times, the pregnancy sac can be seen by abdominal color Doppler ultrasound at more than 5 weeks of pregnancy; The yolk sac can be seen at more than 6 weeks of pregnancy, and some people can see the original cardiac pulsation and punctate embryo; The fetal heart and fetal bud can be seen at about 7 weeks of pregnancy. It is normal to see the fetal heart and fetal bud when examined at the corresponding time period. If the menstrual cycle is irregular, it is not possible to calculate the time of the yolk sac and embryo according to this rule, but it can be calculated according to the size of the pregnancy sac seen by the first B ultrasound, and then the time of the yolk sac and embryo is estimated. Therefore, during pregnancy, regular prenatal examinations are needed, and timely symptomatic treatment is found after problems are discovered.