A little bummed out today 😞

Sierra β€’ I`m 23, I am married and we have a three year old boy and an 18 month old boy, we are trying for a girl.
Today is my 21st birthday! I am 9 weeks pregnant, I'm so excited to be having baby number two but it's kinda a bummer that I can't celebrate my 21st like most people do! Anyone else faced with this downer?