It is usually possible to check whether the pregnancy is intrauterine or ectopic at around 6-7 weeks of pregnancy.
If the pregnancy time is short and the fetus is small, the gestational sac can not be seen, with the passage of time, the fetus gradually increases in size, and the gestational sac can be seen at about 6-7 weeks of pregnancy, if the ultrasound does not find the gestational sac in the uterus, the heart of the fetus and the fetal buds indicate that there is a possibility of ectopic pregnancy.
Ectopic pregnancy is detected not only by ultrasound, but also by blood HCG test. If the blood HCG does not double or increases slowly, ectopic pregnancy may have occurred.
If ectopic pregnancy has already occurred, medication or surgery should be carried out as soon as possible to avoid hemorrhage.