Feeling emotional

I'm feeling emotional as I've just found out that my partner has a night shift the day before my birthday and because he doesn't live with me and needs his sleep I won't see him until the afternoon of my birthday which feels really shitty as I love birthdays! I know I'm an adult but birthdays are a big deal for me and the only person who will be there on my birthday is my 10 month old son but he doesn't understand. This has literally ruined my birthday for me because I can't even celebrate with him on the day after as it's my friends baby shower. Please tell me I'm not alone in this and would anyone else feel this way. I'm going to be 25