Celebrity Parents Heidi Montag Says She's 'Not Pregnant' with Baby No. 2 'Yet': 'Just a Little Overweight' Heidi Montag and husband Spencer Pratt share 3-year-old son Gunner Stone By Jen Juneau Jen Juneau Twitter Jen Juneau is a News and Movies Staff Writer at PEOPLE. She started at the brand in 2016 and has more than 15 years' professional writing experience. People Editorial Guidelines Published on February 15, 2021 01:27 PM Share Tweet Pin Email Heidi Montag Pratt. Photo: Presley Ann/Getty Heidi Montag is setting the record straight. In a Saturday tweet, The Hills: New Beginnings star addressed whether she and husband Spencer Pratt — who already share 3-year-old son Gunner Stone — were expecting their second child together. "No I am not pregnant yet. Just a little overweight," she wrote, not replying to anyone specific. Montag, 34, followed up with a series of tweets on the same day with claims like, "There would be no show without me ... so you're welcome" and "No time for fake people in 2021." "Don't let people pressure or bully you," she wrote on Sunday, following up with, "Boundaries are important." Never miss a story — sign up for PEOPLE's free daily newsletter to stay up-to-date on the best of what PEOPLE has to offer, from juicy celebrity news to compelling human interest stories. Heidi Montag Skis Down Mountain with Son Gunner in Her Arms: 'Easier Than Walking' Montag previously said back in October 2019 that she and Pratt, 37, were "thinking about" a sibling for their son, who turned 2 that same month. "Thinking about baby #2 … " she wrote cryptically on Twitter. Montag and Pratt haven't been secretive over the years about their desire to expand their family. In July 2018, Pratt told E! News that he and his wife were thinking of adding to their brood "next year." "I'd love a girl or a boy," said Montag at the time. "I love having a son. It's so much fun. So if we have another boy, we'll probably have three [kids]." Pratt added, "A psychic did tell us we're gonna have twins, so watch out, Mary-Kate and Ashley!" RELATED GALLERY: How Stars Celebrated Valentine's Day 2021 Montag and Pratt celebrated Valentine's Day this year by dining out with their son, as well as attending a "gender reveal" party for a friend. "What a day full of love!!!!! ❤️ @spencerpratt you are the love of my life! Thank you for every moment!" Montag captioned a series of photos from the day. "My friends I love and share such special mom and wife moments @racheleva13 @got.it.for.my.girls @caitlyncrisp," she added. "Our children who couldn't love each other more!!!! #happyvalentinesday #love 💝" In December, Montag shared a pair of photos of herself spending quality holiday time with her son. "Beginning to look a lot like Christmas at our house! Such a fun day decorating the tree and making Christmas cookies. This is what life is all about!" she wrote at the time.