After pregnancy, you usually go to the hospital for the 1st check-up around 6 weeks after menopause. The 1st examination is mainly to check the gynecological ultrasound to see the development of the embryo. If the ultrasound sees an intrauterine sac and a pulsating fetal heart, it proves that the embryo is developing well; if there is no abdominal pain, vaginal bleeding, etc., regular maternity checkups are fine, and in case of abnormalities, you should go to the hospital in time. In addition, the 1st maternity checkup should also check the blood cell analysis, urine analysis and the eight viruses, that is, to check whether there is hepatitis B, syphilis, AIDS, etc., which should be found in time during pregnancy, and if it is positive, the pregnant woman should block mother-to-child transmission in time during pregnancy. If you go to the hospital at 6 weeks of pregnancy and check the gynecological ultrasound without seeing the gestational sac in the uterine cavity, you should repeat the ultrasound in another week until you see the gestational sac in the uterine cavity.