Am i just being selfish?

ok so i really don't know if I'm overreacting, hormonal,selfish or if I'm actually right. So I'm 31 weeks and last Sunday on April fools day my brother in law and his wife announced they we're pregnant too (they are the kind of people that think the world revolves around them) i took it as an april fool but then the next day it turns out it was true.. i told some close friends and their response was "so they didn't want to let you shine alone " do you guys think I'm just being selfish or making it a big deal when it's not.. i think if they had a different attitude i wouldn't mind i would actually be excited because i think they are having a girl and so am i my baby would have someone close of age to play with..what do you guys think??