“90210” alum Tori Spelling isn’t sure what she wants to name her baby. She and husband Dean McDermott are parents to Liam, 9, Stella, 8, Hattie, 5, and Finn, 4, McDermott, 49, has an 18-year-old son from his previous marriage to Mary Jo Eustace.

“The pressure is on,” the mother-of-four told E! Online at the Elizabeth Glaser Pediatric AIDS Foundation's Annual festival Sunday. “The names came to us [for] all four of them, so we're hoping the name comes to this one, but we don't know what it is yet.”

The actress doesn’t know if she is having a boy or a girl yet. The star announced she was pregnant for the fifth time to People Magazine Oct. 5.

“We did find out with the first two, didn’t find out with the second two – huge, amazing surprises,” she told Entertainment Tonight Online at the event Sunday. “The kids are old enough now they kind of want to find out, you know. We've taken a family vote so at some point we might find out but not yet.”

Spelling, 43, is happy that her children are old enough to “experience” this pregnancy with her. “It's really nice to be going through this pregnancy with my kids this age,” she said to E! Online. “I had them all pretty quickly and all back to back, so they were little. Now they're four through nine, so they can enjoy this pregnancy and experience it with me.”

Spelling was stunned to find out she was pregnant, again. “It was a total surprise. But we always wanted a big family. I’m really excited,” she told People Magazine. “For the first time this year, they’re all in school. So it’s like, wow. We’re basically starting over.” She added: “Dean was saying, ‘We just got Finn out of diapers; I thought we were in the clear!’”

McDermott hasn’t issued a public statement on Spelling’s fifth pregnancy.

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