I feel like I make people feel guilty.

I am 26 years young and my younger brother (20) had a baby this year. I have been trying for 3 years with my partner we have had 3 miscarriages the last one was the worst we had a missed miscarriage at 13 weeks, it hit me really hard as when I actually miscarried at 14 weeks I hemoriged and nearly lost my own life too. Now I have a beautiful nefew who I adore but my brother and his girlfriend won't talk about me trying as they say they feel guilty for having a son. I don't know how to talk to them without them thinking I want pitty or make them feel bad for having my nefew. Any advice sorry for the long story.