Multiple media outlets are reporting that Khloe Kardashian, 33, is expecting her first child with her NBA star boyfriend, Tristan Thompson.

Representatives of Kardashian and Thompson are yet to comment on all the rumours, but BuzzFeed News, TMZ, E! Entertainment and US Weekly have cited anonymous sources who say that Khloe is pregnant. A producer of the reality show since 2007 congratulated Khloe on the news.

According to TMZ’s report, the Good American designer conceived naturally with Thompson, a 26-year-old Cleveland Cavaliers player, adding that Kardashian is three months along.

Reports of Khloe’s pregnancy is the latest addition to the Kardashian baby rumour mill.

Earlier reports claimed that 20-year-old Kylie Jenner, Khloe’s younger half-sister, was pregnant with rapper Travis Scott’s child.

READ MORE: 'Weed advocate' claims he has never smoked marijuana

There are also reports that Kim Kardashian and husband Kanye West are expecting a third child via a surrogate, though the Kardashian-West family has not officially addressed those reports.

The “Keeping up with the Kardashians” star left a number of breadcrumbs hinting at a bun in the oven when she shared photos of the couple on Snapchat after her 33rd birthday.

She also shared a Polaroid image which had written under it “Dad + Mom” and featured Khloe placing her hands near Thompson’s mouth. Sources close to the couple later told TMZ that “Dad” and “Mom” references are just nicknames the two have given each other.

Khloe and Thompson have been dating for a year, and, according to the Kardashian’s Snapchat videos, they appear to be very in love.