Proud parents Chrissy Teigen and John Legend couldn't be more in love with their newborn daughter, Luna, whom they welcomed in April, but the duo may be already trying for a second baby!

"John and Chrissy do want another baby sooner rather than later," a source told E! News. "They both always wanted a big family."

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The model, 30, and singer, 37, struggled with infertility issues before becoming pregnant, which was the result of many IVF treatments that consisted of numerous hormone injections. The couple even froze leftover embryos for future use, but how many remains unknown.

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Chrissy would likely have to undergo treatments again if she's unable to conceive naturally, but this may be a small price to pay for the couple, who appear very eager to start trying for another little one. We're sure baby Luna would be thrilled to have a little brother or sister in the near future!