ricardo,
What was the test?
Who was the provider (the awarding body)?

If it's not on the current approved UKBA listing you will need to organise another test before applying FLR(M)
You should apply FLR as soon as you get married ( as long as English Test is approved to new listing) Don't wait too long.

Normally FLR(M) will be granted provided there is no major non-compliance.
Just be careful with the English test.