welcome to health care magic
dont getresult by your self ,ask doctor
for cardaiac activity ,sometimes it is delayed growth your doctor will give you hormones or injection twice a week for further development of foetus.please dont be in hurry for any thing .consult your doctor.if you can provide me the whole history of treatment i can help you out in making any decision as you were pcos
,,yes it is quite possible to see cardiac activity after one week .hope for the best.
mail me ur complete history of medication at email@example.com