Jenna Fischer and Lee Kirk have welcomed their second child Credit: JB Lacroix/WireImage

She's popped! Jenna Fischer and her husband, Lee Kirk, have welcomed their second child, her rep confirms to Us Weekly. Their baby girl, Harper Marie Kirk arrived on May 25.

"We are pleased to announce the birth of our daughter Harper Marie Kirk," the happy couple told E! News. "Born May 25, 2014. The family is doing great. We are happy, healthy and sleepy."

Us broke news back in February that the pair were getting ready for baby No. 2, who joins big brother Weston, 2. Throughout her pregnancy, the Office alum often tweeted about her hormonal antics and cravings.

"So I'm pretty sure the crazy nesting phase of my pregnancy has kicked in. Yesterday, I dusted the pipes in my basement," she tweeted in March. She joked in May: "Personally, I'd want to wake up to a wall of donettes. Who's with me?"

Fischer, however, seemed most excited about her new tyke's nursery digs. "I think I may have finally settled on a nursery decor. For my husband's sanity please let this be true," she tweeted in April. "The crib is here! Thank you @SerenaandLily for saving the day!" she added days later of the upscale homewares company. "Any chance you guys can come over and help sanitize bottles? #almostthere."

Fischer and Kirk married in July 2010 in Malibu, Calif., with Survivor host Jeff Probst as the ceremony's officiant.