According to TMZ, Gigi Hadid is pregnant and expecting her first child with Zayn Malik. "Gigi has kept the secret close to her family and friends for a while," a source told. Adding, "Once Gigi and Zayn got back together at the end of last year, it was like they never skipped a beat and knew what they had was special. The couple and their families are overjoyed." At this time, the couple has yet to share the exciting baby news publicly, and are keeping details of their little one tight-lipped. However, it's clear Zayn and Gigi have had a lot to celebrate this month! The duo recently celebrated Hadid's 25th birthday. The supermodel uploaded an Instagram video that showed Zayn and her sister, Bella Hadid. The trio looked over-the-moon happy, as Gigi held up massive balloons and smiled from ear-to-ear. The birthday girl opted for an oversized black turtleneck and light-washed denim that she accessorised with a belt and boots. "Gigi and Zayn got back together right before the holidays in December. Zayn has been reaching out to Gigi and she is giving him another chance. She has always loved him and the break between the two was needed," the source added. Despite the fact they been on-again and off-again before, it looks like things are different this time around.