Kimye, party of six! Kim Kardashian and Kanye West just welcomed their fourth child, Psalm, and seem perfectly content with their sweet family. It sounds like the number of kids they have is the right fit for the busy parents and their new son may be the last one … for now. Never say never, right?

“Kim and Kanye feel like their family is complete. Kim used her last embryo with Psalm, and four kids is enough for them to handle!” a source divulged exclusively to Life & Style about the Keeping Up With the Kardashians stars’ future plans.

The reality couple welcomed their sweet son into the world on May 9 via surrogate. They waited about a week to announce his unique name, which feels straight out of Kanye’s Sunday Service. The A-list duo shares three other children — North, 5, Saint, 3, and Chicago, 16-months. Although Kim revealed shortly after his birth that Psalm is “Chicago’s twin,” it turns out his older sis had issues accepting the new babe.

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“Chicago didn’t really understand that she was going to have another brother until the baby was born,” a separate source told Life & Style. “There were some jealousy issues to begin with — she’s used to being the youngest and her parents doting on her, but she’s fine now and is adjusting well.”

Kim isn’t a newbie when it comes to parenting so she’s taking all the precautions to make sure all her kiddos feel included, especially her eldest. “North always wants to be center of attention, which is why Kim’s making a huge effort to ensure her eldest doesn’t feel left out, especially now there’s four of them competing for her attention!” a third source dished to Life & Style. “She’ll let North pick out onesies and other cute baby clothes for Psalm to wear so that she feels involved and has organized a no-expense-spared birthday party for her next month.”

Raising four kids is no joke. Hang in there, Kim!