Re minimum bank statement for spouse visa on benefit

[luna11]

Hi all,
I am on disabilty benefit and want go ahead with my filipna wife spouse visa application on 22 July 2011.
I will have bank statement from the period
10 February 2011 until 20 July 2011
which covered the period showing my rent and bills from the time i moved into my presant address on 28th February 2011.
Will this be enough? i worked it out as 5 months and 10 days will this part month count as 6 months? as it is 6 months technically in terms of months etc.

So is this ok to satisfy the entry officer.