Friends and Disappointment

We are ttc again after losing our son at 20 weeks in November. One thing that I have felt has happened a lot is that our friends just don’t understand. We have friends who are currently pregnant who don’t understand why we don’t want to see them and we have friends that don’t understand why it is so heartbreaking each month it doesn’t happen. Has anyone else felt similarly while they are on their TTC journey? It feels so alone and each time it doesn’t stick I feel like we are failing our friends. How does everyone “cope”?