PGD is, i believe, pre-implantation genetic diagnosis. basically they run the DNA from a single cell in your embryo to test for certain genetic disorders. it's more exxy, and far fewer embryo's make it through the testing procedure so i think, for the sake of the patient, they ask that you dont BD and do anything that might mess with it's chances of sticking. timing of EPU and things is critical as there isn't much capacity to test - i think with monash, they can only test two couples on any given day.

i think we've only ever DTD once in any TWW - mostly cos of the ick factor with the crinone or pessaries! i don't think it's made a difference to our outcomes, but after the early m/c's we've experienced, any future TWW's will be BD free - maybe even up til the second tri. Dh will have to deal with non penetrative fun!