An ultrasound can be done at 5-6 weeks of pregnancy to confirm that it is an intrauterine pregnancy. Some women may need an ultrasound at 7 weeks to confirm an intrauterine pregnancy if the fertilized egg is deposited later. The pregnancy should be confirmed by ultrasound to determine whether it is intrauterine or ectopic. If your menstrual cycle is usually regular and you have an ultrasound at 5-6 weeks of pregnancy, you may be able to see the gestational sac in the uterine cavity and determine that it is an intrauterine pregnancy. If your menstrual cycle is not regular, and the fertilized egg is later in the pregnancy, you may have to delay the ultrasound for 1 week to confirm the pregnancy. After pregnancy to determine the intrauterine pregnancy to have the possibility of continuing the pregnancy, after pregnancy ectopic pregnancy is the gestational sac in the fallopian tube, abdominal cavity, ovaries and other locations, is not normal pregnancy, can not continue to pregnancy. In addition to the ultrasound examination to determine intrauterine pregnancy, but also to determine the intrauterine buds, fetal heart development, to determine the intrauterine is a live fetus can be normal pregnancy. In addition, if you experience any discomfort during pregnancy, please consult the hospital in time to avoid any adverse consequences.