Hi,
Sorry to hear about your OH resignation.
I work for the SSA so I have a bit of an idea.
If your OH is looking for another job, he will need to claim Job Seeker's Allowance for him and you.
The only problem with that is there is usually a suspension period if you left your job voluntarily but if the previous employer confirms the situation, I don't imagine this will apply.
You will be entitled to extra tax credits for your little one and your OH will be entitled to the same free prescriptions etc that you currently are.
Also, if he is in receipt of JSA, full housing benefit will apply or full help with rates.
Hope that helps,
Julie xxx