hi routchil,

As for fiancee go to ur local immigration office so he can stay longer here in phils. it will take only mins to get his visa extended just fill up the form and pay certain amount. you can give the flight details of ur fiancee so they will know how many months he be staying. Its easy, quick and cheaper here i think. Note that they dont count the actual extended days but i think minimum is 2 mos. Anyway, just go to ur local immigration office so u not be thinking with it anymore instead have a happy time together Congrats for the upcoming wedding
As to ur age, applying spouse visa gonna take awhile age limit now is 21.