PGS results back

Rachael • Married to my wonderful wife, mom to D, twins on the way. lots of other roles and titles.
Three blasts...
Got an email from my RE that says 
"Results are very good. One normal male, one normal female and the third one may still be a normal female"
No idea what the third means. I asked and he said it was too complicated to explain by email and we would talk during our phone appt on Wednesday. Any ideas as to what that could mean for googlings sake?
If you were open to twins would you transfer one at a time or both at once? Beowulf you do another egg banking cycle first if you knew you wanted two kids?