Kim Kardashian Is All Smiles as She Steps Out for the First Time Since Giving Birth to Saint West

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Kim Kardashian is starting out the New Year right!

The 35-year-old reality star was spotted visiting a doctor's office in Beverly Hills on Tuesday, marking her first public sighting in 2016. The mom-of-two appeared as happy as ever, exchanging laughs with her assistant, Stephanie, as she showed off a much slimmer figure in an all-black ensemble and sported French-braided pigtails, her signature hairstyle as of late.

WATCH: Kim Kardashian Shares Sweetest Photo of North & Saint West Holding Hands

Splash News

A source close to Kim tells ET that she hasn't left the house much since giving birth to her and husband Kanye West's second child, Saint West, in December. She's only stepped out for appointments, or to take their 2-year-old daughter, North, out for walks, the source adds.

Though she has already lost 17 pounds, Kim is still trying to lose all the baby weight as quickly as she can by walking, doing yoga and Pilates, according to the source, who also noted that due to her pregnancy complications, she's unable to do any heavy weight lifting at this time.

WATCH: Kim Kardashian's New Year's Resolutions: Lose the Baby Weight and Be Nicer to Mom!

As ET previously reported, Kim revealed on her mobile app that her goal weight is 120, which would require her to lose 53 more pounds.

Kim also talked about her post-baby body goals on her app back in October. "As much as I really hate the whole feeling of being pregnant, I enjoy the challenge of getting my body back after it's all over," she explained. "I feel so accomplished when I'm back to where I want to be."

WATCH: Kim Kardashian Makes First Post-Baby Appearance at Kris Jenner's Christmas Eve Bash

Last month, the reality TV star made her first event appearance since giving birth to Saint at Kris Jenner's star-studded Christmas Eve bash held at her home in Calabasas, California.

To hear more on the festive soiree, watch the video below.

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