We have done U/S scan 2 days before for my

Patient: We have done U/S scan 2 days before for my wife, it shows, a twin intrauterine gestational sac in the fundas witha single embryonal pole-yolk sac complex within it, E/o embryonal cardiac activity in one sac FHabsent, sac is regular, well defined uniform decidual reaction is noted, no e/o subchronic haematomanoted. also my doc told me 1 sac is about 8 week 2 days growth and another sac is only 7 weekgrows. so pls do again U/S scan after a couple of week. my question is. is ther any complex problemin it and what are the possiblities to get heat beat for a second sac after 7 week?…please give meyour expert opinionthanks

Symptoms: Everything normal in scan report

Doctor: