Kim K. recently announced the sex of her unborn baby, but she might have actually known all along.

A photo posted by Kim Kardashian West (@kimkardashian) on

An anonymous source told Us Weekly that Kardashian used a special "gender-selection process" to make sure she had a boy. Kardashian has been open about her struggles to get pregnant again and her use of IVF. Now the source—Khloe? Kourtney? Kendall? Kylie? Bambi?—says that she only had male embryos implanted during the process.

“She only had boy embryos implanted," says a source close to Kardashian, who confirmed the gender on Monday, June 21, after Us Weekly broke the news. During the procedure — which can start at roughly $17,000 — doctors isolate fertilized embryos of the preferred sex in a lab, then transfer them to a uterus.
Sources: h/t Uproxx | Us Weekly