Kim, Khloe & Kylie Pregnant: A Timeline of the Kardashian-Jenner Babies on the Way

Dimitrios Kambouris/Getty Images for Yeezy Season 3
Khloe Kardashian, Kylie Jenner and Kim Kardashian attend Kanye West Yeezy Season 3 on Feb. 11, 2016 in New York City.

The Kardashian-Jenner clan is expanding: Kim, Kylie and Khloe are all reportedly expecting around the same time.

While Kim Kardashian West will soon be welcoming a baby -- her third, with husband Kanye West -- via surrogate, within the past week sources confirmed to outlets People and TMZ that Kylie Jenner is pregnant with Travis Scott's child and Khloe Kardashian is pregnant with basketball player Tristan Thompson's.

The babies on the way will also join cousins Mason, Reign and Penelope -- Kourtney Kardashian's children with Scott Disick -- and Dream, Rob Kardashian's daughter with Blac Chyna.

Keep track of all the recent baby news surrounding the family in the timeline below.

June 21, 2017: Reports first surfaced that Kim and Kanye had opted to find a surrogate to carry their third child, who would be a younger sibling to their daughter, North West, and their son, Saint West. The couple apparently paid $68,850 to a surrogacy agency and were set to compensate their chosen surrogate with $45,000. The decision came after Kim shared details about her high-risk pregnancies -- due to preeclampsia as well as placenta accenta, a painful and potentially life-threatening condition that meant her placenta had to be manually removed from her uterine wall by her doctor.

Aug. 16, 2017: In a Hollywood Reporter cover story interview, Kim confirmed that she and Kanye were indeed hoping to add another child to their family. "We're definitely trying," she said.

Sept. 6, 2017: News broke that the surrogate hired by Kim and Kanye got pregnant, and according to TMZ, the baby is a girl who's due to be born in January 2018.

Sept. 22, 2017: While Kim and Kanye's baby is brewing, reports came out that Kylie Jenner -- the youngest sibling of the Keeping Up With the Kardashians family, at age 20 -- will soon be joining the ranks of motherhood. According to a lead published by TMZ and later backed up by People, Kylie and rapper Travis Scott are expecting a baby together. Kylie is said to be due in February, not too long after Kim's new little one makes her appearance.

Sept. 26, 2017: Good news comes in threes. The baby buzz continued as "multiple sources" told People that Khloe Kardashian and boyfriend Tristan Thompson, the NBA star who plays for the Cleveland Cavaliers, will be welcoming a baby in 2018, too. TMZ echoed the reports and claimed she's three months along, which would likely bring her to a potential March due date.