Freeze and hoping for the best. First they’re dehydrated so the chance of damage from ice crystals forming is minimised. Then the embryos are cooled to minus one hundred forty degrees and cryopreserved in liquid nitrogen until they’re required.
Thawing takes around 1-2 hours. It’s important that the embryos are frozen at a precise time in their development. This can be commonly after they are at a four or eight cell stage of cell division. This can be because they have become a little more stable by this stage and there’s less probability of them being broken during the freezing and thawing stages.
Embryo Transfer Myths Revealed
You could be forgiven for imagining the uterus is sort of a huge empty space where the embryo rattles around until it finds somewhere soft to nestle in. However those pictures of a pear formed “hollow” area aren’t entirely correct. The back and front walls of the uterus actually meet once there’s not a baby forcing them apart. this means that the tiny embryo is really well encircled by soft nourishing tissue and blood. once the embryo is transferred on day two of its development, it will continue to divide for a couple more days before it’ll implant.
Try to not change your normal daily activities once you’ve got had an embryo transfer. The temptation may be strong to just rest up and take it very easy. however bear in mind that in normally conceived pregnancies, women aren’t even aware they’re pregnant at this stage and simply set about their lives as per normal.