I am 39 yrs old I had my tubes tied 9 yrs ago I have never missed a period. Now I am 13 days late I have took 3 pregnancy test and they all are negative. What could be going on with me.

You may be getting early menopause. Many women after getting their tubs tied start going throw early menopause and at 39 you are only 10 years off. So it is likely.