Can you get pregnant 8yrs after tubal ligation?

The more time that passes after a tubal ligation the (slightly) higher the risk of regeneration of the fallopian tube/s. It is extremely rare but it can happen.

Because there is scar tissue from the tubal ligation, there is also an increase chance of a tubal pregnancy. If your period suddenly stops, whether you are having symptoms of pregnancy or not, take a pregnancy test or see your OB / GYN.