There weren’t official aurors, but at it’s core auror was more of a calling than a job title, the ministry formalized into a job title but in the end it was about one’s willingness to stand against the darkness. Tonk was an auror in her heart, she was willing to sacrifice everything. And remember the way Voldy works Dora and Lupin were on the hit list one way or the other him for being a werewolf and her for sullying the family name, if Voldy wasn’t defeated eventually he was going for them no matter what. Better to take the fight to him, with maximal allies and the best chance of success than to stay home and wait. They were thinking about the baby, but the focus was on what kind of world the baby would live in 5, 10, 20 years from now, rather than the comforts of the baby’s home today and tomorrow. They decided it was better for the baby to grow up an orphan in a free world than with both parents in a world dominated by fear.
Yeah. What you said.
Exactly. I think they knew, as you said, that had the war been lost, they were done for, and probably Teddy as well.
But I think they would have had larger regrets if Voldemort had been defeated and they played no role in that.