4BB success?

I would love to hear some success stories with 4BB euploids. Even more specifically if anyone had a miscarriage with a higher grade euploid and then went on to have a LB with a lower grade euploid from the same retrieval, I would love to hear those stories!

For context we had a MMC with a 4AA euploid in February, we have one other euploid left from that round - a 4BB. I’m terrified I’ll have the same result with this one. We have sent the POC for cytogenetic testing so we’re not sure yet if it was an issue with the embryo but the doctors think it’s likely, hence why I’m scared my 4BB will be the same.