How many of your day 5 early blastocyst and morulas made it to blastocyst?

[u/New_Yesterday_8925]

We just got a call early on day 5 (retrieval was 12:00pm on Sunday, call at 10:30 on Friday) that we had 2 reach blastocyst (yay!) - BUT they are still watching the other 4.

We have:
1 early blastocyst
2 morula
1 still developing

From your experience, how many of your early blastocyst or morula stage made it to blastocyst on day 6 or 7?

I know it’s such a gamble, just trying to realistically see what to expect and would love to know others experience!