This brings us back to my original question.

Where do you find that the tribulation is 7 years long?
All Scriptural indications is that the tribulation happens in the MIDST of those seven years.

Scripture also states that the antichrist will be revealed before we are raptured (2 Thess. 2:1-3)...

...And that there will be a false peace and safety before we are raptured (I Thess. 5:1-4; Dan 9:27)

...And that the Antichrist is BRUISED under our feet as we are raptured up (Rom. 16:20; Gen 3:15; Rev 13:3)

It is very possible that we might be here for the first part of Daniel's last week.