You need to respect her enough to acknowledge she doesn't want to talk as much as you would like her to.
I had IVF for a mammoth 18 years & it changes you as a person - unless you have been through it, as an outsider you really do have no idea/understanding/imagination as to what sort of person/frame of mind/state she is in.
What you do need to know, however, is that at every single appointment, in every hospital call, there are literally so many ifs & buts that unless you've been through it, you don't know how it dominates your life.
I didn't want to discuss it daily, it turned me into an unrecognisable f*ing angry, resentful, bitter, envious monster. When people contacted me just to find results of blood tests, hormone levels, dosages, when the next injection is, questions about cysts & follicles, when the next appointment was it felt like I was feeding their ego about their own fertility. They were rubbing my face in it.
I hate to say it, but if she was your best friend, she wouldn't be contacting others and ignoring you.
Just PLEASE - I mean this in the politest way - If she wants you or needs you, she'll be in touch, so just give her some space.