Have you ever felt like you don't matter. Like your on the outside looking in. My SO has a great…

Have you ever felt like you don't matter. Like your on the outside looking in. My SO has a great family but I just feel like it's him and his family and friends and I'm just there. They all tell him he's going to be such an amazing father yet no one says anything to me. Maybe I'm just super hormonal but it's a shitty feeling