AITH for being mad at my friends for not being in town on my birthday?

I (24F) am turning 25 next weekend, to preface it is a 3 day weekend for most people. I texted my close friends group chat about a month and a half ago to float a bday idea past everyone and all of the girls seemed down.

Then today I texted my larger group chat of all my friends (girls & boys chat) and right away 7/12 people in the chat said they would be out of town. That's fine I get it, but two of the people who said they wouldn't be able to make it are my best friends who are in that smaller chat where I asked about my bday a month ago.

Honestly I do know I get a little sensitive and dramatic with birthdays but it hurt my feelings that I learned my two best friends (who are also my bridesmaids in my upcoming wedding) can't make it and didn't tell me till I asked the larger group. I also was just kinda embarrassed that I had to text and say "okay I'll just reschedule then" to everyone. I unfortunately can't reschedule cause someone else's bday is the next weekend and then the following weekend is 4th of July.

Am I overreacting at being upset about this? I feel like I'm always the friend to plan peoples birthday and I have all of my friends bdays on my calendar and have said no to vacation plans so I can be there to celebrate them.