question: My wife has undergone first IVF on Sept 27 and embryo transfer on Sept 29. It was just 1 6-cell embryo of grade A. Its now almost 13 days since ET but she is not experiencing and symptoms neither of pregnancy nor period. She is on Progesterone suppositories and also on Estradiol . So we are confused. First beta is due on Oct 13.....Can we HPT right now......our what is the successe rate of 6-cell Grade A embryo