Please Help!

1st Sorry for ranting.

Alright so some back story: I have 3 sisters, 2 older and 1 younger. Me, my oldest sister and my younger sister have always know that the second oldest is my mom's favorite. We have come to terms with that. Or at least I have. So Jordan (the favorite) has one son, he was the first and is still the only grandchild. He is very spoiled, being the only one. Now I am having a baby due in august and everyone was so excited when we announced it. But now Jordan is having another baby, due 1 month after me. My mother has already shown so much more excitement for Jordan's second baby than she has for my first. Taking her shopping, buying her a new crib, pick out nursery themes. But with me, didn't even come to the gender reveal. She did the same thing a few years ago when Jordan and I were moving into new homes within the same week. She spent 2 months, everyday, with her unpacking, organizing and decorating. And it took her 6 MONTHS to come and see my new house.

I guess what I'm getting at is that I'm really afraid that even though this is my first child, she will not care near as much. Because her favorite is giving her another grangchild.

Am I being ridiculous? I just feel so unwanted. Like my child could never measure up to her dear favorite's children.

Please give some advice.