Hi Thais! Thank you so much for sending a birthday letter to your child! It can take between a few weeks to a few months for letters to be delivered to the children. I did see that your letter for her has already completed the translation process and has been printed out in our Kenya office and placed in the center's box for mail pickup. Centers pick up the letters from the offices about once per month on average, which means it is very possible that your girl could receive her letter in time for her birthday. That being said, I cannot guarantee she will since I am not able to find out when her center picks up the letters. Even if she receives it after her birthday, I know she will be so grateful to see you thought of her birthday!