You know I used donor embies and one thing that made me struggle with how many to transfer was that every single transfer (three) had produced babies and the frozens both produced twins. So on the one hand, I was getting embies that (thank you God) had not been selected three prior times but on the other hand those three times had been very successful! Hopefully yours have had a good track record for prior transfers too.
Honestly the main reason I'd wait now is not the pattern but the length of time you've waited and the thickness. I don't recall exactly how thick "too thick" is but I think 12 is the maximum ideal thickness (hopefully someone else will chime in because this is somethign I just recall reading and maybe there is newer thinking on lining thickness). Mine was 12 and apparently in process of converting but not trilaminar and transferring three resulted in twins.
I think if you manipulate things right, you'll be transferring before you know it.