Do you have backing in scripture for that? I for one take God seriously when he says that you won't know.
The general birth pangs period approaching the Tribulation time
Scripture indicates that those watching, prepared and alert will know that the birth pangs period has arrived.
Not the specific day or hour
but the general time frame.
It helps to avoid reading INTO Scripture what’s NOT there.
Do I have scripture and verse? Not at the moment. It’s just something I’ve noticed over the years of reading the Bible that God warns HIS people of impending judgements, etc. I believe He will do the same, through the Holy Spirit, to His people when this will happen. If we know the scriptures regarding the end times, we will be able to see it for ourselves as well.