IMHO no need vaccines/tablets.
Nueva Ecija is such a nice place and not polluted.
Take your laptop-hand carry. 7 kilos is allowed but someteimes depends upon airlines.
Travel Insurance is great.
No need to apply visa.
But apply extention visa there (Immigration and Deportation Office) if you think you'll stay more than 28 days.
Know her well before you marry and wish she is the same.
