Good
DAnn, did you know you can seriously expedite that process and receive within a couple of weeks?
Look here - Advance Endorsement Birth ,Marriage and Death Certificate
Visa for settlement visa (Spouse AND Fiance(e)) processing times can be found here - Guide to visa processing times - Manila Philippines
38% of applications decided within 40 days
90% of applications decided within 60 days
DAnn, I'm just presenting the facts, whatever you will think of them or whatever you will do with them is your choice.
My final word on your proposed strategy is that you do have immigration options. Explore them
If you get married after you get your fiance(e) entry visa but before you enter the UK, technically you shouldn’t use the fiance visa. Consult an immigration advisor
The fiance(e) visa is an entry clearance to the UK only so that you can get married. Read the rules
If you’ve already got married, the fiance(e) entry clearance visa is not the appropriate visa. Consult an immigration advisor
If you do go ahead with your strategy, then on the balance of probabilities, you will face future problems on your immigration journey including potential allegations of misrepresentation of marital status, misrepresentation of immigration rules or visa deception/fraud. Research the possible consequences
Whatever your final decision good luck