My period date gone 6 days ago, till now now pain no period. Now how to I confirmed that I am pregnant?

Depending on where you are in the world, you go to a drug store and buy a home pregnancy test (HPT).
You may not be pregnant.
It's a little too soon to use the test, but buy 2 of them anyway, and do what the pharmacist or the instructions tell you to do.

There is no need to ask the same question 4 times.