"I don't want my wife to read anything except near future. Because we said near future," Levin told reporters Monday evening. "This will be a joint decision."

A Levin spokeswoman told The Hill on Monday that his decision will come in the next three weeks.

Levin, like his spokeswoman, argued that his small fundraising haul didn't indicate that he plans to retire. He raised $13,000 in the final three months of 2012, a much lower number than most senators who face reelection in 2014, though he'd had a similar fundraising lull before deciding to run in previous elections.

"I have never raised money until my cycle," he said.