Mohan, question about I-864A

Mohan,
My wife who is my sponsor has just been laid off from her job. I am making 25k a year myself. Can we use the I-864A? What I mean is, can I as the sponsored immigrant use I-864A to help my wife sponsor me?
Would be very grateful for a reply.

Mohan, I forgot to mention that our interview is coming up soon so that is why I ask. Thanks.