Jan. 19 (UPI) -- Kim Kardashian says baby No. 3's name is Chicago West.
"Chicago West," she wrote, adding her baby girl's birthdate and weight.
Kardashian announced Tuesday that her surrogate gave birth to a 7lb, 6oz infant Monday, Jan. 15. The television personality already shares 4-year-old daughter North West and 2-year-old son Saint West with West.
"The baby is home now with mom, dad and her big sister and brother and enjoying their time as a family bonding with the baby," a source told E! News this week.
Kardashian addressed her decision to use a surrogate in a post Thursday, saying she "instantly" bonded with her daughter.
"The connection with our baby came instantly and it's as if she was with us this whole time," she gushed.