I had unprotected sex 9 days before my period is it possible to get pregnant?

If you happened to ovulate at that time, then yes, it is possible. See what happens when you expect your period.

ANY time there is penile insertion there is a possibility of pregnancy. You can reduce the possibility, but not eliminate it.

Its always possible to get pregnant when you have sex. You will have to wait and see if you are, or not.

If you are trying to get pregnant, then you need to medically track your ovulation and time sex according. If this was merely random sex, and you are worried about pregnancy, now is too late to be concerned, that concern needed to happen before sex, by saying no, unless using protection and using proper protection.