Visa Fiance income requirement

[mahsa]

I am a USA citizen and I applied for Visa for my Fiance. The application has been approved.We are waiting for interview date.But the problem is my income.I am a student and I didn't have income. I and my fiance don't have enough income not even asset.There is no one to become a co-sponser.But I am looking for a fulltime job now.Do you think if I find a job now is it help?How many months do I have to work inorder to meet the minimum income requirment? Is there other way?
Can you help us with our situation?

[cfasic]

Just wondering but, when did you submit your petition and when was it approved? And what service center did you send your papers?