www.kimkardashianwest.com / . 1 / 13
www.kimkardashianwest.com / . 1 / 13

Oh boy! How cute is Saint West!

Kim Kardashian has finally given us the first look at her 11-week-old son with Kanye West. On Monday morning, the 35-year-old reality star posted a snap of their bundle of joy on her website and app. And the timing was not without significance.

Kim's late father, Robert Kardashian, would have turned 72 today. He died in 2003 following a short battle with esophageal cancer.

"Today is my dad's birthday. I know there's nothing more in the world he would have wanted than to meet his grandchildren. So I wanted to share this pic of Saint with you all," Kim wrote in a message accompanying the photo, which shows Saint sound asleep, snuggled up in a white onesie.

Saint was born on Dec. 5, 2015, and his arrival made North West an official big sister. She turns 3 in June.

Two days after the birth, Kim revealed the tot's details: "To our fans. Saint West. 12.05.15. 8 pounds, 1 ounce," she wrote.

Last month, Kim shared a cute image of little Saint's hand, holding on to his big sister North's finger, with the caption: "She said, 'He's my best friend.'"

The Keeping Up With The Kardashians star and Kanye, 38, were previously open about not rushing to name their son.

"It's like the last thing Kanye and I did when North was born," Kim told People magazine in November of her now-2-year-old daughter.

"We didn't name her for, like, seven days. I feel like it will just come to us."

During the past few weeks, Kim has documented her life as a mother-of-two on her website.

Just last month she opened up about breastfeeding -- and revealed it can sometime be quite the challenge.

"I'm about 2 months into breastfeeding and I'm not gonna lie -- it can be time-consuming," she wrote on her website.

"For some reason, North hates when I feed the baby, and she lays on my lap so Saint can't be right in front of me to eat, LOL!"

Kim said she the solution is to include North while she breastfeeds -- and that helps.

"She loved helping me, as opposed to my attention being off of her, and now she is my little helper," Kim wrote.

Breastfeeding, Kim said, is "easy" for her.

She continued: "I produce a lot of milk -- so much that I've taken over my mom's freezer with tons of milk!"

And Kim says she usually uses a nipple shield when she feeds and thinks Saints feeds better with it.

"It allows me to never get irritated nipples or anything because they're protected by the shield," she said. "The hospital suggested shields to me, since at the beginning I found nursing super painful and difficult, so I took some home and never looked back."