Feel like a horrible person

In May, on my birthday, I had a miscarriage. We both wanted the baby so bad and were devastated. I went through so many blood tests and doctor visits and now we are trying again.

Within a few days of each other, 2 of my closest friends told me they were pregnant. I only have 2 close girlfriends where I live and they are all now pregnant. I am happy and excited for them but I spent all last night having mental breakdowns because I'm also still sad.

I feel like a horrible person that I'm jealous, sad, and really struggling. Anyone have any coping tips?