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Kate Upton

Kate Upton has given birth to a baby girl.

The model and actress took to Instagram on Saturday to announce the arrival of her daughter Genevieve Upton Verlander with a black and white snap, just days after celebrating her first wedding anniversary with husband Justin Verlander.

"Genevieve Upton Verlander 11.7.18," she captioned the sweet photo, revealing the newborn had arrived on Nov. 7.

Proud dad Justin also shared the same image on his Instagram page, and wrote: "Welcome to the world Genevieve Upton Verlander. You stole my (heart emoji) the first second I met you!!! 11.7.2018."

Kate and baseball player Justin, who pitches for the Houston Astros, announced their baby news in July via a social media post which showed off the 26-year-old's growing belly.

"#PregnantinMiami @justinverlander," she wrote alongside a picture of her posing in a stylish red suit.

The sportsman re-posted the same photo on his own Instagram and added a heartfelt message praising his wife.

"You're going to be the most amazing Mom!!" Justin, 35, wrote. "I can't wait to start this new journey with you! You're the most thoughtful, loving, caring, and strong woman I've ever met! I'm so proud that our little one is going to be raised in this world by a woman like you! I love you so much."

Genevieve is the first child for Kate and Justin, who married last November in a beautiful ceremony in Italy, shortly after the Astros won the World Series over the Los Angeles Dodgers.

"I got to marry my best friend," the star told Maxim in July. "He's an amazing man. He's so supportive and focused and motivated, and he inspires me every day. I'm so very lucky that he's my husband."