That does not fit the context. You are really reaching to come to that conclusion.
How about verse 36, which says "But of that day and hour knoweth no [man], no, not the angels of heaven, but my Father only." This is in reference to the second coming of Christ. Christ Himself says that no one will know the day and the hour. However, in the earlier part of the chapter, there are a lot of signs that Jesus talks about. How can these be in reference to the same event?
It fits the context perfectly, since Jesus was answering the questions "When will these things take place ... What will be the sign of your coming" ... since He has not come yet, which we both would agree on that, He has to be talking about a future generation.
Agree that vs 36 is reference to the 2nd coming. The "signs" in the earlier verses are referenced to the types of things happening during the tribulation. Notice He uses the birthpangs analogy. Birth pangs for a woman produce some level of pain and discomfort, but they are only a hint of the anguish to come. Birthpangs are used by Jesus to describe all these horrible things; war, famine, earthquakes, false christs. Then comes the real bad stuff, i.e., tribulation greater than ever before.