Reese Witherspoon Baby Boy: First Look

Just seven weeks after his birth, Reese Witherspoon has been spotted out with her new baby boy Tennessee James Toth on Wednesday.

For his first public appearance, Tennessee James donned a navy blue and green outfit while Witherspoon, 37, was casually clad in denim.

Witherspoon and her husband Jim Toth announced their son's arrival in September.

"Both mom and baby are healthy and the entire family is thrilled," revealed the actress' representative at the time.

The baby boy is the first child for the couple, and the actress' third child; he joins older sister Ava, 13, and brother Deacon, 8- Witherspoon's children from her marriage to Ryan Phillipe.

"The kids met the baby the first day at the hospital," revealed an insider speaking to Us Weekly shortly after Tennessee's arrival.

"Deacon is excited to have a brother. And Ava can't wait to babysit," the source added.

Additionally, first-time father Toth has "been there for Reese every step of the way," noted the insider at the magazine. "[He's] very excited his son is finally here!"

Married for over two years, Witherspoon and Toth kept their growing family a secret until the actress debuted a growing baby bump.

"Franky, I'm feeling very round," the "Legally Blonde" actress finally admitted during the Cannes Film Festival in June.

Her pregnancy came as no surprise as Witherspoon revealed in a past interview that she would "love" to have more kids with Toth.

"I'd love that. I feel really good and I'm at a really good place in my life," said the Oscar Award-winner earlier this year when asked about more children, according to OK! Magazine.

Meanwhile, as Witherspoon was welcoming the newest addition to her family, Brian Austin Green and his wife Megan Fox also welcomed their son Noah.

The "90210" star recently revealed gratitude to Witherspoon for helping conceal his son's arrival from the media.

"We got really lucky, and I've been wanting to send Reese Witherspoon flowers for, like a month and a half," said the actor while speaking to Ryan Seacrest.

As the media poured over Witherspoon, the focus on Green and his wife was diverted.

"We got out of the hospital and nobody knew," said the actor. "We weren't expecting to get away with it. So we just figured we would go with it as long as we could."