Feeling Conflicted

My husband and I have known fertility issues. Been trying for over a year. I have endometriosis and pcos. We are currently seeking help for him through urologist for azoospermia. My best friend sent me a picture of a pregnancy test this morning. This is their 5th month trying. I am absolutely thrilled for her. But also extremely sad. It makes me hate myself for being so selfish in this moment for her. Of course I am sending lots of love and congratulations to her. But it just sucks sometimes. Will this ever get easier!?