My DH and I had to face the exact scenario in the OP.
It took us six years to conceive our children so naturally we spent quite a lot of time considering what we’d do if we can to the end of the road without conceiving.
Plan A was “have a baby”
But we spent a great detail of time working out Plan B in detail. We even started on some of it while going through IVF etc.
Our personal Plan B wasn’t about considering the disadvantages of being a parent at all. It was a whole different mindset involving our careers, hobbies, where and how we lived.
We started our discussion “if we were free to do anything - what would we do?”
As it happens some of our Plan B was so awesome that we’ve done it even though we were, in the end, fortunate enough to conceive our children.
We wouldn’t even have thought of embarking on some of the wonderful things we’ve done if we’d got pregnant straight off.
Although it doesn’t entirely balance all those years of heartbreak it’s not a bad start.
Being a parent is amazing and we’re incredibly grateful but it’s not the only way to live.
We used some resources online to help guide some of our thinking.
OP your friend might like to Google “More to Life Fertility Network” as a starting point.
I wish her all the very best.