Shock-radio host Howard Stern is having second thoughts about walking down the aisle with fiancee Beth Ostrosky.

Stern, 54, has plans to wed Ostrosky in October (08), but is nervous about following-through on his second-round of nuptials after divorcing first wife Alison in 2001, according to his on-air sidekick Robin Quivers.

Quivers reveals, "He’s like, ‘Am I doing the right thing? Should I do this again?’" But she doesn’t think his nerves are too much cause for concern, adding, "They’re very happy together."