Thanks for the query.
Rarely sometimes intrauterine pregnancy
occurs along with ectopic pregnancy. But this is very rare occurrence
So you better go for rescan as advised by your doctor.
If the gestational sac
is confirmed inside the tube, in case of unruptured sac, you can follow things like:
Aspiration of cyst under ultrasound
-Injecting fetecidal agents in the sac through abdomen.
You continue progesterone
supplementation to prevent further bleeding and take bed rest as much as possible.