emotional wreck

I dropped my 6 year old off today at school and I always walk her to her classroom since she's only in kindergarten. Well today she told me she didn't need me to walk her any more. It really hurt my feelings. I couldn't help but cry once I left. She's my baby and always will be. Idk if im so emotional because of my hormones or if I'm really sad that she's independent. This whole pregnancy I feel like my hormones have been under control but now at 36 weeks they are all out of wack.