Reality star Kim Kardashian is celebrating her birthday on 21 October. She has become a mother for the fourth time in the past. Her fourth child is born through surrogacy. This is Baby Boy, whose information has been shared with everyone via a tweet on social media. Since then, everyone is congratulating Kim and her husband Kanye West. Kim and Kanye are the parents of three children before this. Kim-Kanye has three children Chicago, St. and North. Birthday Special: Navjot Singh rules from Cricket to politics On this happy day, Kim Kardashian tweeted - He is here and he is absolutely fine. Let me tell you that Kim's daughter Chicago was also born through surrogacy. Birthday Special :Hilarious one-liners by Navjot Singh Sidhu If you do not know, then 38-year-old Kim always wanted four children. Kim had said that she finds surrogacy more difficult than pregnancy. However, in May last year, she had said that the birth of her child through surrogacy was enjoyable for her. After this, everyone is eagerly waiting for the name and first picture of Kim's fourth baby. Kim is very active on social media. If you look at Kim's Instagram account, her whole account is full of her bold pictures. Along with this, she keeps sharing pictures and videos of her husband and children with fans. Birthday Special: Sunny Deol's name has been associated with this famous actress