January 02, 2016 07:45 PM

World, meet Saint West!

Kim Kardashian West released the first picture of her newborn son Saint on her website Saturday. The cute shot, which shows Saint’s hand wrapped around sister North‘s finger, is titled simply, “BFFs.”

Kardashian West wrote on her website, “She said ‘He’s my best friend.’ “

Saint was born on Dec. 5 in Los Angeles, weighing 8 lbs., 1 oz., at birth. The reality star, 35, and her husband Kanye West, 38, announced their son’s name via Kardashian West’s website and app that Monday.

Kim Kardashian

Though both Mom and baby are happy and healthy, the Keeping Up with the Kardashians star didn’t have an easy labor: A source told PEOPLE that Kardashian West suffered from placenta accreta, the same condition she experienced during her first pregnancy with daughter North, now 2.

“She had a really tough birth because of the issues with her placenta,” the source said of the high risk pregnancy condition in which a woman’s placenta grows too deeply into the uterine wall and doesn’t detach, requiring a doctor to scrape it out by hand.

Despite the difficulties, the reality star was surrounded by her husband and close family for the birth, and a source told PEOPLE sister Kourtney Kardashian, 36, assisted throughout the labor.

She also had several several family members visit her at her luxury maternity suite, including momager Kris Jenner, 60, and Khloé Kardashian, 31, who were both spotted arriving at the hospital throughout the weekend of the birth.

A source told PEOPLE Kardashian West was “so happy to have the baby here.”

“She had some pretty intense anxiety the last couple of days and especially yesterday just before the baby came,” the source added. “But everything went according to plan.”

Kardashian West returned home from the hospital with the newest addition to her family on Monday afternoon.

— Aurelie Corinthios

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