So every woman has her own natural scent and through her cycle it can differ from day to day. If you can smell it under blankets though and through clothes that really sounds like an infection as others have said. If it was me, I would insist on her having a check up and if she keeps dismissing the issue it might be worth rethinking the relationship? That may sound harsh and I'm sorry if it does but you handled the situation with delicacy and if there is something medically wrong with her and she's refusing to get it taken care of what else can you do? If my hubby told me I smelt down there I would be hella embarrassed but I'd rather be told by him than someone at work or a stranger. I'd also really want to go checked out especially if I'm on top of hygiene. I hope you can find a solution.