Heidi Klum has been rumored expecting her fifth baby. The speculation stemmed from the model's social media post showing off a protruding belly. 

Klum shared on Instagram a photo of her, her husband, Tom Kaulitz, and his twin brother, Bill, showing off how satisfied they were with their dinner. In the snap, the trio pulled their shirt up to show their rounded bellies. The twin brothers were dressed casually in jeans and T-shirts while Heidi was in her white and blue bikini bottoms. 

"Dinner was good," Heidi captioned the photo

Many of Klum's 7.3 million followers on Instagram commented on the post, asking America's Got Talent judge if she is pregnant. Others were also congratulating the couple. The speculation got heated up when Kaulitz also commented on the post with, "food baby." 

Some, on the other hand, found the photo adorable and relatable considering many are now spending a lot of time in their couches and kitchen. Others commented on how they gained weight while staying at home for more than a month now. 

Klum has yet to respond to the rumor but some tabloids already jumped into conclusion that the Project Runway host/judge is indeed expecting. Woman's Day cited a source as saying it was a dream come true for Klum and Kaulitz as they have been actively trying for a miracle baby all year.  

"Heidi and Tom having a lockdown baby is just the best news ever," the insider claimed. 

Heidi Klum
(Photo : REUTERS/Shannon Stapleton)
Heidi Klum.

The source added that the couple would like to have twins and already listed down some baby names. Heidi and Tom were, allegedly, like to name their child William or Willow, after the latter's twin brother, Bill. 

Heidi has four children from her previous marriages. She has a daughter with Renault's Formula One team managing director Flavio Briatore and three children from her marriage to singer Seal. 

Klum and the Tokio Hotel guitarist were first romantically linked in March 2018. A few months later, the couple made their relationship public when they appeared together at the Cannes Film Festival. 

They got engaged in December 2018, after approximately one year of dating. Klum and Kaulitz privately wed in February 2019 and they had their wedding ceremony on a yacht in Italy in August 2019.

It is worth noting that this is not the first time Heidi was rumored to be pregnant with her first baby with Kaulitz. In early 2019, she was also speculated to be expecting her first child with Tom. 

Meanwhile, aside from the Kaulitz brothers, Klum is also in lockdown with her children. Over the weekend, the Making the Cut executive producer shared a Mother's Day photo of her showing her four kids surprising her with breakfast in bed.