The hardest decision I had to make my entire pregnancy, besides naming Blakely, was deciding who I wanted in the room. In the end, I only had Blake in the room, but I thought about several people. Obviously I thought about my mom and my grandmother, who've become my best friends as I've gotten older, and I thought about a couple of girlfriends that had always boosted me.
But, what made me decide to only have Blake in the room was when I thought about having my mom or someone else, I thought of the other people who deserved to be in the room if said person was there. Like with my mom and grandmother, I felt obligated to have my stepmom there, as well as Blake's mom and nana in the room with me.
Keep in mind that this is your decision and your decision alone. Don't let anyone convince you to let them in if you don't want them there. No one has control over anything that happens there except for you, and the doctors obviously. Know that no matter who you choose, everyone will respect your decision and if they don't they're not worth it, even if they're family. If someone can't respect the choice of only wanting so and so in the room, they likely won't respect many choices you make, at least that's what I've learned.