We are definitely NOT in the tribulation now. The Tribulation will begin with the antichrist making a world peace agreement. The bible says it will be a time a flattery and peace.
I do think we are in the "last days" as I say. With the current rate of moral & spiritual decay, I believe it could happen in our lifetime. Of course nobody knows, but the Bible is clear that everyday we should be looking/longing for His (Jesus) appearing!