Biel's bestie Estee Stanley threw an intimate dinner party at her house for the glowing mama, with less than 10 people in attendance. According to E! News, the gathering was quite mellow. Spotted leaving the celebration, Biel looked stunning in a long printed maxi dress and black velvet cardigan, while JT was a total gentleman by carrying all of her gifts to the car.
To wish his wife a happy birthday, Timberlake took to Instagram and expressed his love. He posted an adorable picture of the two of them alongside the caption: "Happy Bday to the sweetest, most GORGEOUS, goofiest, most BAD-ASS chick I know. You make me smile 'til it hurts. I love you like crazy! --Your Huz."
See more: Pregnant and Engaged Celebrities
While pregnancy rumors swirled for months, the Timberlakes finally confirmed Biel's pregnancy in January with an Instagram post of Justin kissing her burgeoning baby bump. Since then Biel has been spotted out and about with bump in plain sight.
And insiders note that future parents are really ready for what lies ahead. "They are both so excited for this new chapter and ready to be parents," a source told E! News. "They are such a great team and will both be very hands on and involved with everything."