Shared baby shower🙁

Brie
So my husband and his bother married to me and my sister in law. 
We are both pregnant due 1 week apart & we are having a shared baby shower together since it's the same time/family I guess it makes sense.... 
But I kind of feel cheated because it's not solely on my son (our 1st) and we had to go through <a href="https://glowing.com/glow-fertility-program">fertility treatment</a> to even have him. They got pregnant in 2 months (I know not relevant to the baby shower) but is it wrong of me to feel this way.... Or is it just in my head and be greatful I am having one anyway.... Idk what to feel & my husband just see it as I'm being selfish, which partly is true in a way but shouldn't I be? It's our 1st miracle baby and I figured it should be all about him not split boy/girl theme baby shower.... And then what if we give birth same day then my son has to share birthdays for the rest of his life with his cousin??? 😕 
 
Open to all opinions on this negative or positive. I want ur honest truth so I can just move on and stop thinking about this!