Whether or not you can see the gestational sac on the 36th day of pregnancy needs to be determined on a case-by-case basis; some may be able to see the gestational sac, while others may not be able to see it.
36 days of pregnancy is relatively early, at this time the gestational sac is relatively small, may not be able to see the gestational sac, but some women in the process of pregnancy fertilized egg implantation is relatively early, may be able to see the gestational sac. Each pregnant woman has different physical conditions, different time of implantation, different speed of fetal growth and development, and there are some individual differences.
If you can’t see the gestational sac when you have an ultrasound at around 36 days of pregnancy, you can wait for 1~2 weeks before going for an examination, and you can usually see the gestational sac. If you can’t see the gestational sac for a long time, you may have biochemical pregnancy, ectopic pregnancy and other problems, and it is recommended to seek early medical examination.