Normal life continues on up until Christ comes. They are eating, drinking and marrying as usual, then utter destruction strikes them unexpectedly. As in the time of the flood, the unbelievers are destroyed.
There is no space for your tribulation period and a 2nd rapture and a 3rd coming. There is no space for some future millennium. All those that are left behind are destroyed. All the wicked are dead. All the mortals are dead. All the saints are glorified and the earth is glorified. We're now into the eternal state.
Jesus said in Luke 17:24-34: “For as the lightning, that lighteneth out of the one part under heaven, shineth unto the other part under heaven; so shall also the Son of man be in his day. But first must he suffer many things, and be rejected of this generation. And as it was in the days of Noe, so shall it be also in the days of the Son of man. They did eat, they drank, they married wives, they were given in marriage, until the day that Noe entered into the ark, and the flood came, and destroyed them all. Likewise also as it was in the days of Lot; they did eat, they drank, they bought, they sold, they planted, they builded; But the same day that Lot went out of Sodom it rained fire and brimstone from heaven, and destroyed them all. Even thus shall it be in the day when the Son of man is revealed. In that day, he which shall be upon the housetop, and his stuff in the house, let him not come down to take it away: and he that is in the field, let him likewise not return back. Remember Lot's wife. Whosoever shall seek to save his life shall lose it; and whosoever shall lose his life shall preserve it. I tell you, in that night there shall be two men in one bed; the one shall be taken, and the other shall be left. Two women shall be grinding together; the one shall be taken, and the other left. Two men shall be in the field; the one shall be taken, and the other left. And they answered and said unto him, Where, Lord? And he said unto them, Wheresoever the body is, thither will the eagles be gathered together.”
We note three particular characteristics of this day, which will be repeated at the second coming of the Lord Jesus Christ. (1) The wicked lived as if there was no judgement coming, verse 38 says, “they were eating and drinking, marrying and giving in marriage.” (2) The wicked were caught unexpected, verse 39 says, they “knew not until the flood came.” And finally, (3) the wicked were ALL destroyed, verse 39 says, “the flood came, and took them all away.”
The days before the coming of Christ will see the wicked at ease living in pleasure, sin and carelessness, with no thought of eternity. The everyday occurrences of life (like eating, drinking and marriage) will continue as normal right up until Jesus comes. Christ's coming is going to catch the wicked unexpectedly. His arrival will surprise only those who are not prepared for it. The wrath of God is sudden and totally destructive. No one survives as this passage tells us.
I Thessalonians 5:2-7 the enormity of this climactic event: “the day of the Lord will come (or appear or arrive) as a thief in the night. For when they shall say, Peace and safety; then sudden destruction cometh upon them, as travail upon a woman with child; and they shall not escape. But ye, brethren, are not in darkness, that that day should overtake you as a thief. Ye are all the children of light, and the children of the day: we are not of the night, nor of darkness. Therefore let us not sleep, as do others; but let us watch and be sober. For they that sleep sleep in the night; and they that be drunken are drunken in the night. But let us, who are of the day, be sober, putting on the breastplate of faith and love; and for an helmet, the hope of salvation. For God hath not appointed us to wrath, but to obtain salvation by our Lord Jesus Christ.”
The peace and safety occurs just before Jesus comes at His one final future coming. Any way, if the day of the Lord in 1 Thessalonians 5:3 relates to a third coming of Christ, as some Pretribbers argue, and if they relate this to the event of Revelation 19, which they say is the end of a great 7 years tribulation, how can the wicked be crying “peace and safety”? Surely, according to Pretrib, this is a period of the wrath of God being poured out on all those left behind according to Pretrib theology?