My thought is: If having children is important to you, and it may or may not be with your H, and if you are up for it, discuss with OB. You can explain are in a state of limbo with your M, but do know you want to have children someday so you want to gather info on egg freezing. Ask for FSH test to see your current fertility status--OBs do not often volunteer this test which is why I suggest you ask.
I realize this is very personal and not trying to add to the stress. I just see so many women who are in their mid 30s, 40s who do/did not know about the simple blood test and did not take to heart that the clock was really ticking and wish they had the test and froze eggs.