If my lmp was 8/30/14 last 5 days i have a 25 cycle and i had unpretected sex on 9/7/14 is there any way i can be pregnant ?

Yes: Yes, you can still get pregnant as sperm can last up to 5 days in the female genital tract awaiting ovulation to occur. Engaging in unprotected sex and not desiring pregnancy is like placing a loaded gun in the vagina and not expecting to be "shot".

Doubtful/improbable: certainly not your fertile time 12-14 days before the start of your last cycle and your cycle may be changing. This is a perfect time to consider birth control and condoms: I hope you understand this.

Pregnant?: There is always a very small chance of becoming pregnant, even with sex during your period. Get a home test kit and check a first morning voided urine after missing your next period.