Another baby West is in the works!

Kim and Kanye are planning to have their fourth and final child, and it will be a boy, Us Weekly reports. "[They] have one last embryo left,” a source dished to the mag, noting that it was male.

The couple will have the embryo implanted in their surrogate "soon," meaning that an announcement could be made within the next couple months.

Kimmy K can no longer carry a child because of her risky pregnancies with daughter North and son Saint, so they will go the gestational carrier route like they did with daughter Chicago. It's unclear if they plan to use the same woman as before.

"Doctors said that it wasn’t safe for my — or the baby’s — health to carry on my own. After exploring many options, Kanye and I decided to use a gestational carrier. Although I have used the term surrogate in the past, a gestational carrier is actually the technical term for a woman who carries a baby that she has no biological relationship to. A traditional surrogate donates her egg, is artificially inseminated with the father’s sperm and then carries the baby to term. Since we implanted my fertilized egg in our gestational carrier, our baby is biologically mine and Kanye’s," she explained on her website shortly before Chi's birth in January.

We're calling it now... they'll name him God West!