It is possible to see the gestational sac on the 42nd day of pregnancy or not.
1. Can see the gestational sac: for most women with regular menstruation, 42 days pregnant, the fertilized egg has already developed in the uterus, at this time can be ultrasound examination, can find the uterine cavity gestational sac. However, because of the influence of family genetics, nutrition and other aspects, the size of the gestational sac may have a certain difference, but the difference is small.
2. Can not see the gestational sac: usually for women with irregular menstruation, if irregular menstruation, may cause delayed ovulation, of course, menstruation will also be affected by emotions, the environment and other aspects of the delayed ovulation, the fertilization of the time will be delayed, so 42 days pregnant, the fertilized egg may not yet have been deposited or the formation of the gestational sac is very small, and can not be seen the gestational sac.
In addition, some women may have an ectopic pregnancy, in which the fertilized egg is deposited outside the uterus, so that the uterine gestational sac cannot be seen during ultrasound examination, and surgical intervention is required if necessary.