They may have been able to pick out Luna‘s name easily, but Chrissy Teigen and John Legend are having a much more difficult time deciding on a name for their unborn baby boy. The soon-to-be mom-of-two made an appearance on The Ellen DeGeneres Show on Monday, Feb. 19 and revealed the month we can expect baby No. 2 to arrive. “I am having a baby boy in the spring. I will tell you — it’s June,” she said.

The couple may have a few more months to decide what to call him, but it’s still no easy feat, and time is bound to go by quickly. “Boy names are really tough. I don’t even think he will have a middle name because we can’t even think of a first name,” Chrissy joked to host Ellen DeGeneres.

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I love her love of all creatures

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For 22-month-old Luna, on the other hand, Chrissy had no problem deciding on her unique name. In fact, she had more than enough inspiration. “There was a blood moon happening. It was a very beautiful night, really big vivid red mood and just gorgeous,” the 32-year-old model revealed. “I have a love for space. I think about space camp all the time and my days at space camp as a youngster. And so I thought Luna was just perfect.” So adorable! Now she just needs to get inspired for her little boy’s name.

Chrissy is currently be expecting, but she’s still gushing about how she and John want more babies in the future. Recently, she discussed the IVF process with People, which she underwent to conceive both Luna and the baby she’s currently carrying. With all of her viable embryos from her first round of treatment used up, Chrissy has even been willing to go through the process again. “For me, I just want to gather as many [embryos] as possible. I don’t want to do this again for the rest of my life,” the cookbook author said. “So it’d be nice to get a great batch of beautiful, perfect embryos and keep trying so we did it again.”