I just want to know that after I had my tubes tied three months later I stop having a period. Is this normal :-/

That depends heavily on how old you are.
There are some notions that getting your tubes tied brings
About changes in the blood flow and that this can bring about this kind of a reaction.
Most women experience menopause between 45 and 55 years of age.
If you are under 41 it is generally agreed that that is too young and it is wise to consult a doctor.
If you are experiencing cramps every month, without blood loss it may also be wise to see one.
If you have lost much weight or have overdone your sport actifities that can (besides stress) also be a cause.

So depending on your age and on the presence of any other worrying symptoms one can say if this would be normal or not.

Be aware that a period that stays away for a few months, can still come back in some cases.