I arrived on the 8th, getting married, and planning to stay for 30 days

Hi, I'm Quincy from Manila, and i arrived last 8th of March. I'm assuming that I'm visa-free for 14 days -- now my question is, does the counting start upon my arrival or the day after? In which case, I will be getting married on the 21st March, so do I apply for an extension now to do so or is it ok not to, since we're planning to stay in Macau for an overnight trip from the 22nd? Or is that too late to reset my free stay status? Thanks in advance! :)