I need some support

Christina
Just found out my sister in law and my brother in laws wife are both pregnant. They are two weeks apart. My husband and I have been trying but it's not happening for us and even if it does they are really close & don't involve me in much, so I'm worried if it does happen soon I'm still gonna be like the black sheep. I'm feeling very alone and sad. Has anyone every been in a situation like this? Any support is very welcomed.