Octal - See also. 1  Computer numbering formats. 2  Octal games, a game numbering system used in combinatorial game theory. 3  Syllabic octal, a specific octal representation of 8-bit syllables.
Your doctor or nurse will suggest 1 of the following methods to begin taking the pill: Start your first pack of pills on the first day of your menstrual period. Use a backup method of birth control (such as condoms with spermicide) until you start the pill.
DAY 1 START: 1  Pick the day label strip that starts with the first day of your period. 2  Take the first orange âactiveâ pill of the first pack during the first 24 hours of your period. 3  You will not need to use a back-up method of birth control, since you are starting the pill at the beginning of your period.