TAKING THE PILL AT THE SAME TIME

HI. I AM PRETTY GOOD ABOUT TAKING THE PILL EVERYDAY ALTHOUGH I HAVE MISSED ONE OR TWO DAYS IN THE 3 MONTHS THAT I HAVE BEEN TAKING DESOGEN BUT I TAKE IT AS SOON AS I WAKE UP THE NEXT MORNING. BUT MY CONCERN IS THE FIRST TWO WEEKS I STARTED THE PILLS I TOOK THEM AT 8:30 pm EVERY NIGHT BUT SINCE THEN MY WORK SCHEDULE HASN'T ALOWED ME TO TAKE THEM AT THE EXACT SAME TIME EVERYDAY SO I USUALLY TAKE THEM BEFORE I GO TO SLEEP...AT WHATEVER TIME THAT MAY BE. AND IF I FORGET, I TAKE THEM IN THE MORNING THE NEXT DAY WHEN I WAKE UP. MY QUESTION IS BECAUSE I DON'T HAVE A SET ROUTINE DOES THAT LOWER THE AFFECTIVENESS OF THE PILL? PLEASE GET BACK TO ME AND THANKS SO MUCH. THIS WEBSITE IS A REALLY BIG HELP. :-)