It is rather presumptuous to assume that we are either Pre-Tribulation  or Post-Tribulation Saints. We cause division amongst ourselves when we take a stand on this issue which breeds both pride and contempt. It is because both of these events are true that we are confused, mistaken and divided. Our position in either scenario is not ours to choose - this choice belongs only to God who knows our hearts. All saints have received the grace through faith to believe in Christ and are saved. It is Jesus who will decide who is ready and worthy to escape the things which are coming upon this earth to test the hearts of all men. It is The Father who chooses a bride for His Son by The Holy Spirit and  it is The Church from which The Bride will be taken.
 
Our part is to keep ourselves filled with The Holy Spirit so that we will remain pure, spotless, unblemished and blameless before the world. We are to watch and stay ready at all times. Then we are to pray that we may be accounted as worthy to escape the things that are coming upon this earth. We will then accept wherever we are placed by God because He is Just.

What Jesus says about this -
When Jesus noticed that all who had come to the dinner were trying to sit in the seats of honor near the head of the table, he gave them this advice: “When you are invited to a wedding feast, don’t sit in the seat of honor. What if someone who is more distinguished than you has also been invited? The host will come and say, ‘Give this person your seat.’ Then you will be embarrassed, and you will have to take whatever seat is left at the foot of the table!
“Instead, take the lowest place at the foot of the table. Then when your host sees you, he will come and say, ‘Friend, we have a better place for you!’ Then you will be honored in front of all the other guests. For those who exalt themselves will be humbled, and those who humble themselves will be exalted.”  Luke 14:7-11