Feeling like my heart is broken/what ifs

Hi there. I experienced a very early miscarriage last month and I thought I was managing okay but the last couple weeks have felt like hell for me. I don't know why-if I was suppressing my hurt initially? My best friend found out she was pregnant the day after me (before my MC) and her pregnancy is happy and healthy (thank god). She has now told people about her pregnancy and is talking about her pregnancy a lot and it hurts my feelings.  I don't know if I am unjustified in this it just is a constant reminder of my pain. Hearing her updates makes me think about things that would be happening to me had I kept my pregnancy (hearing heartbeat, etc). Getting pregnant again wouldn't make this much better because I'm always going to wonder "what if" and want the baby that I had even though it was so early. After going through infertility treatments I want morning sickness. I feel so alone in this pain. Has anyone else had to deal with a close friend being pregnant while you were dealing with a loss? How did you handle it? Do I need to just suck it up and pretend to be ok?? I have so much guilt. Guilt over my loss and guilt when I tell people what has happened and they are uncomfortable.