Technically, no such thing as secret wedding. hehe. but i get what you mean sis.
Based sa mga kaila ko na nag secret wedding, k regret to the next level after that. hehehe.
k usually spur of the moment decision lang. plus, you hurt lots of people: your parents, your close friends, your siblings if you have any...
pros: it's just you and me, babe. charing! in ader words, sweet kaau.
for people deciding to do this secret wedding, well, I dont know you. so if you feel it is the right decision then go ahead.

But I hope you thought about this over and over and over again. Marriage is a lifetime sentence, este, commitment baya. hehehe.