baby cousin is having TWINS

and I can't get one!! I love her so much, she is my best friend and I am genuinely happy for her and I don't want to be jealous but it's there. she 26, got pregnant on accident, baby daddy is a liar, and the family doesn't like him, ugh I'm 30 married been trying almost 2 years, hubby knows I'm excited, but im sure he can feel the disappointment in my voice too, what do I do, I see people on Facebook get pregnant all the time but this is my best friend, and it really bothers me...what do I do