'Surprised by Five': Mom shares pics of surprise quintuplets

WARNBRO, Australia - Beatrix, Penelope, Allie, Tiffany and Keith.

They're the set of quintuplets who completely surprised their parents, Kimberly and Vaughn Tucci, who set out to have just one more baby and ended up naturally conceiving five!

The Warnbro, Australia couple -- who already shared two daughters -- had been trying for a third when they were "Surprised by Five".

Doctors said conceiving five babies without IVF or fertility drugs happens only about one in 55 million times.

Their story was shocking, and went viral back in January after Erin Hoskins of Erin Elizabeth Photography posted photos from Tucci's maternity shoot.

And now, four months later, they're going viral again!

Pictures from another photo shoot, this time posted to Tucci's "Surprised by Five" Facebook page, show the quintuplets, post-birth.

"50 fingers, 50 toes, 6 hearts beating at once. My body fought the toughest of battles to get five babies here safely. Everything I did I did for them

The family says they are doing well, and are now working to raise money for a van large enough to fit them all.

As of Friday, the GoFundMe account set up for their cause had raised just over $38,500 of the $40,000 needed.