I am new here.
I have finished my first IVF cycle on on April 25th and it was a BFN.

I am trying to figure out what could have gone wrong
Here's the info on my cycle:
24 eggs were retrieved
sperm did not penetrate any on the first day
Rescue ICSI - insterted 17 eggs on the 2nd day-9 fertilized
Embryologist said the eggs appeared to have a hard shell, they did assisted hatching on the transferred embryos
Transferred 2 8cell embryos 3 days later, the rest were under 6 cell stage
None were left to freeze
Took progesterone capsules for the 2 week wait
The utering lining was 12 the day before the Transfer.
3 days before the pregnancy test, I started spotting, which develped into AF by the pregnancy test day
Please give me your thoughts on what could have happened, what went wrong and what to do next time
I was on Lupron for 2 weeks and 1.5 vial of Bravelle for 10 days for my Protocol
thank you all