I'm sure you will be able to sort this out with this one clue: there are 100 trumpet blasts during the feasts of Israel and the last one is blown for as much air as the trumpeter can fill his lungs to make. That LAST TRUMP is a 'closeout' blast. Are you familiar with the Feasts of Israel, GOD's directed times?
You are referring in your post to '7' trumpets, as revealed in Revelations. Are you aware that when Paul wrote tot he Thessalonians John's Revelation had not been given yet? Paul would not have been referring to trumpets not yet disclosed.
But there are only 7 trumps that count down to the return of Christ... And Paul was specifically ‘elected’ to pen the majority of the so called New Testament... And Paul knew what he was referencing when he said last trump...course he did say it was a mystery to the many.
Christ Himself elaborated on the trumps, seals, vials, of Revelation in Matthew 24, Mark 13, and Luke 21. No where does Christ instruct anybody to have their bags packed for a fly away... Rapture doctrine is a false security blanket. Do you know who the literal ‘anti-Christ’ is? Christ foretold who it is.