Can Suprox SR Cause Slower Labor Pains?

TODAY I HAVE 9 MONTHS PREGNANT AND IN COMPLETION OF MY TERM, AS MY EXPECTED DATE OF DELIVERY IS 4 MAR.I HAVE BEEN TAKING SUPROX SR FROM MY INITIAL MONTH OF PREGNANCY.RECENTLY SOMEONE TOLD ME THAT SUPROX SR IS TO SLOWER LABOUR PAIN AND AS I HEARD ABOUT IT I DISCONTINUED ITS USAGE AS I GOT SCARED AS NOW I AM IN WAIT OF MY LABOUR PAIN. PLZ CLARIFY MY DOUBT?