At 35 days of pregnancy it cannot be called a fetus, at this time it is an embryo, usually a gestational sac of about 0.5cm in diameter, but there can be individual variations. Delayed menstruation in women of childbearing age is highly suspicious of pregnancy and can be confirmed by blood or urine hCG measurement. Ultrasonography can be performed as early as 35 days after menopause to identify intrauterine pregnancy, at which time the intrauterine gestational sac can be seen to be about 0.5cm in diameter. However, in the case of irregular menstruation, the gestational sac may not be of the same size because it may have just or not yet attached by the 35th day of menopause, due to its late attachment. After the ultrasound examination in early pregnancy is clear about intrauterine pregnancy, the ultrasound examination is also done at about 42 days after menopause to find out the development of the fetal buds and the fetal heart. Early pregnancy should also pay attention to appropriate rest, avoid strenuous exercise and exertion, prohibit coitus, continue to take folic acid on time, according to the degree of early pregnancy reaction to adjust the diet appropriately.