I had a mock transfer with each of my transfers, I think. They just insert a catheter of the same type they use to do the ET. It takes just a second. They did mine at the same time they did the HSG. It just helps them know how far it is from the cervix to the top of the uterus.
Me 34 endo, MTHFR, clotting issues
DH 47 semi-low morphology
TTC 6 yrs
3 IUI's all BFN
IVF#1: 10/08 BFP early MC
FET#1: 03/09 BFP
DS born 11/28/09
FET#2: 03/11
DS born 11/21/2011