"My birthday is the first!" is an English equivalent of the French phrase Mon anniversaire est le premier! The declaration also translates as "My anniversary is the first!" according to English contexts. The pronunciation will be "mo-na-nee-ver-seh-rey luh pruh-myey" in French.
My birthday is the first
"bon premier anniversaire / joyeux premier anniversaire / heureux premier anniversaire"
mon anniversaire est le...
Bon anniversaire.
Premier étage in French is "first floor" in English.
En quelle saison est ton anniversaire? in French means "In what season is your birthday?" in English.
"My birthday is February 13th!" in English is Mon anniversaire c'est le treize fevrier! in French.
"My birthday is the 8th of February" in English is Mon anniversaire est le huit février in French.
"When's your birthday (anniversary)?" is an English equivalent of the French phrase C'est quand ton anniversaire? The question translates literally as "It's when, your anniversary (birthday)?" in English. The pronunciation will be "sey kaw to-na-nee-ver-ser" in French.
mon anniversaire est le deux février
Je fête / je célèbre mon vingtième anniversaire.
"My birthday is on the 7th of June" in English is Mon anniversaire est le 7 juin or Ma fête est le 7 juin in French.
"Sunday February 1st" in English is dimanche, le premier février in French.