Graduation.. need help!!

So this was my senior year in high school and I graduated early (in like jan) due to pregnancy and a skin disease. I told my mom I didn't want to actually be at my graduation bc I don't really socialize with anyone in my class and bc I don't want to walk the stage being pregnant. Well my husband's younger brother is in my class and is graduating at the end of the month and he wants us to go. But idk if I should? I'm not even going for myself why would I go for everyone else. Not to mention his whole family is more excited about my husband's younger brother and cousin graduating this year. I didn't even get a congrats? And they both want me to go to their graduations? My fam doesn't really care that I graduated either. It just kind of upsets me and I'm not trying to make it all about me but it hurts that No one even notices or cares while they are getting cars and stuff for graduation, I'm just here with my emotions like damn.. anyways. What should I do? Should I go to support them?