so this is a newish thing to me, just after some advice on whether it's worth a shot? I need to ask my clinic Monday if they use it routinely as I've read a lot of clinics do now, if not can I request (and pay for it obviously) it myself? Not sure how it works... I've had 1 failed fresh cycle and am doing my first FET this cycle - currently on day 3 and start meds on day 21. I've read it can be beneficial in unexplained fertility and as our fresh cycle went as good as it could have, I have a gut feeling implantation is my issue.