It's one big day after the next for the West-Kardashians, and next up is little North West's first birthday.

Less than three weeks after Kanye West and Kim Kardashian said "I do," the couple are heading back home after two honeymoons and a stopover at Bonnaroo to celebrate baby North's birthday.

The big day for the littlest member of the family -- June 15 -- happens to fall on Father's Day this year.

A source told E! News the family plans to have a quiet celebration of both events Sunday in New York City before holding a larger birthday celebration next weekend.

"This weekend, Kanye is performing at Bonaroo and they will fly to New York City for a low-key Father's Day and birthday party," the source said. "They are throwing her a big party next weekend and Kourtney [Kardashian], Khloe Kardashian and kids coming home for it."