family members used our name

Charlotte • 💏 + 🎀👶10/28/16 + 🍬👶03/20/18

so my husband and I picked our baby name. i was 17 weeks pregnant then and we didn't know the gender of our baby yet. we decided Olivia if girl and Oliver if boy. at 22 weeks we found out boy..Yay!!..And made sure everyone in our families knew that Oliver was chosen. Well guess what....now I'm a day away from being 39 weeks and I found out that my cousin on my mom's side had her baby a month ago and named him Oliver.....my cousin on my dad's side named there newborn Oliver 2 weeks ago....and my husband's cousin on his dad's side did the same 3 months ago......wtf!??!?!?! I am so mad and emotional over this I can't stop crying. I feel like I got dibs on our baby name and No one is respecting it. No one else announced wanting the name or that they were using it and now other people have already used it in my family. what am I suppose to Do??? I shouldn't have to change it cus I picked it and made it known in advance so that this wouldn't happen. but I don't want my so sharing that name with so many people in his generation and age group, literally weeks and months apart from each other especially since they were born first. I'm so devastated.....we knew right away it was our perfect name....I said I'd always loved the name Oliver and then my husband said it sounded perfect and that was that. now my heart is broken because I'm so torn at the thought that I have to or should change it now......I don't know what to do anymore.