Alec Baldwin's pregnant wife Hilaria Baldwin took to Instagram with a possible hint about her baby's gender Credit: Rob Kim/Getty Images

Another Baldwin boy on the way? One day after revealing her second pregnancy via Instagram, Alec Baldwin's wife, Hilaria Baldwin, again took to the picture-sharing site with another exciting announcement.

The mom-to-be hinted at her bundle of joy's gender, sharing a photo of baby boy footwear alongside her high-heeled boots, Alec's loafers, and daughter Carmen's pink shoes. "So we have an announcement to make...can you guess??" she wrote alongside the pic, with several blue heart emojis.

She went on to note that she would be chronicling her pregnancy online, presumably via Instagram. "Now, with this little baby growing inside of me, I will document for you how I am going to take care of myself while pregnant and beyond," she wrote. "There will be great tips if you are expecting or if you just want to learn really good exercises and nutrition tips...here we go again!!! #hilariahealthy2015"

Baldwin and her hubby also filmed a video for Extra about their baby news, with the 30 Rock alum questioning his wife about how she feels.

"I feel less sick, actually," she told him. "I'm not as hungry. With Carmen I was ravenous. I am hungry, I'm still eating a lot, but with her it was extreme."

On the subject of gender, she said she'd done a couple of predictor tests — which offered different results. One test said "boy," but several other tests said "girl."

This will be the couple's second child together, and Alec's third child overall.