Gigi Hadid's year just got a helluva lot better .... she's officially a MOM!!!

Gigi gave birth to her and Zayn Malik's first child together ... a baby girl.

Zayn is over the moon. He shared an adorable snap of his hand around his little one's, and said, "The love i feel for this tiny human is beyond my understanding." He also assured everyone that their little bundle is 'Healthy & beautiful."

It was just a few weeks ago the supermodel showed off her growing baby bump. She looked pretty damn angelic and glamorous. In one of her pics, she simply captioned it, "Growing an angel :)"

She also posted a series of photos with the date July 26 ... probably the date she shot those pics. In another post, she cradled her belly and said, "Cherishing this time. Appreciate all the love & well wishes. Will never forget creating these special images with my friends @luigiandiango @gabriellak_j @erinparsonsmakeup thank you. I love you!"

TMZ broke the story ... Gigi was around 20-weeks pregnant when we reported the news back in April. Though, at first, she didn't come out and say it herself ... only dropping hints.

Like during her 25th birthday party celebration ... when Gigi flaunted big 2-5 balloons that also had blue and pink ribbons attached. She also posted pics about dining on spicy vodka sauce, with a twist -- she wrote, "but have no vodka... so without, but still gooood." See? Hints.

It wasn't until an appearance on Jimmy Fallon when Hadid finally fessed up.

Congrats!!!
 

tmz.com