"Hopefully in a few months, we’ll start trying," she told Us Weekly on Thursday, July 25.
The couple welcomed son Gunner, 21 months, in October 2017 and he's growing up fast.
"He’s starting to talk a lot more, which is really fun. He loves TV, which is great for traveling and he’s running the sprints everywhere. He’s just a lot of fun," the MTV star revealed before noting that the toddler also “loves playing with crystals."
"The Hills: New Beginnings was actually a blessing in disguise. It was nice because I wouldn’t have left Gunner, and I kind of needed a little encouragement and motivation to do that. It’s still really hard for me to leave him. Obviously, the most fun for me is being home and being with my son and I love being a mom, but at the same time, it’s good for both of us to go out sometimes," she admitted.
Heidi and Spencer have been together over 10 years. They eloped in Mexico in 2008 but held an officially ceremony that was filmed in 2009.
What do you think of Heidi's desire to have another baby? Sound off in the comments below!