Related : Gigi Hadid and Zayn Malik Expecting First Child

It's going to be a party of three!

According to TMZ and ET, who cite sources in their reports, Gigi Hadid is pregnant and expecting her first child with boyfriend, Zayn Malik.

"Gigi has kept the secret close to her family and friends for a while, as she's only a few months along," a source told ET.

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!

Last week, the duo celebrated Hadid's 25th birthday. Over the weekend, the supermodel uploaded an Instagram video that showed her boyfriend sandwiched between her and sister her, Bella Hadid.