Celebrate Liv Tyler’s 39th Birthday with Her 13 Best Maternity Looks

Happy birthday, Liv Tyler! The pregnant star turns 39 years old today, and as a soon-to-be mom-of-three, she has maternity style down to a science.

Ever since she announced her third pregnancy back in January, we've been awed by the model and actress's baby bump-bearing looks. From showing off her red carpet style prowess in an off-the-shoulder cobalt blue gown at London Fashion Week to expertly demoing how to turn overalls into a flattering maternity look, Tyler knows just how to style her growing bump while staying totally comfortable.

Back in February, the star told InStyle the secret to her success: menswear. "I generally try to find the pieces in my wardrobe that I could stretch out for as long as possible, like a great men's button-down shirt in a big size," she suggested.

"Even if I want to just wear sweatpants or a sweatshirt--I went to James Perse the other day and got, like, a large men's sweatshirt and it looks great. Or I'll just wear black tights and boots, and sort of an oversized shirtdress."

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In honor of her 39th birthday, we've rounded up her 13 best maternity looks since announcing her third pregnancy. Keep scrolling for some serious outfit inspiration.