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.
There are three different ways to start taking birth control pills. 1  First Day of Period Start: Start your pills on the first day of your period. Continue to take one pill every day at the same time. 2  Quick Start: Take your first pill today at a good time for you. Continue to take one pill every day at the same time.