Thanks Emma! So anxious, you are right. So sorry to hear about your early BFN. Fingers crossed it is still too early. My embryos are day 2 (Melbourne IVF) so only 4 cells, tiny. Growing them to day 5 is a way of possibly selecting stronger embryos, without doing PGD (but of course, doesn't tell you if they are chromosomally normal or not). MIVF only does day 3 biopsies for PGD and I wasn't sold on that because they are so tiny then, and we only have 7 (took us 2 cycles to generate them) and they will be our last.