Further Leave to Remain

[jiqbal222]

My wife was issued with Visa in June 2014 and 2.5 years expires Apr 2017.At the time of applying income was over £21K combination of two jobs.
My question is
At the moment we both working but I doubt it that we will meet the threshold of £18600 come Apr 2017,
I work at supply teacher , work is not consistent it is very much quite Sept to Dec, which is part of my 6 month period where payslips are required.

I am really worried and want to plan ahead,
What are my options? If we do not meet the requirement.

[CR001]

FLR(FP) if you don't meet the financial requirement. Think this will be a 10 year route to ILR.