I am with monash Ivf and will be having a frozen transfer next week. I have a hatching blastocyst which I've been told should be transferred on day 5 but as the clinic is not open in a Sunday they have said that if day 5 falls on a Sunday they will transfer on day 4 instead and that there's no problem. Has anyone had this happen before and does it really not make a difference? It just sounds a bit suss to me as timing is clearly very important but suddenly transferring a whole day earlier isn't an issue?? If that was the case why don't they just transfer them all a day earlier?