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.
You may be able to take certain types of birth control pills if you are breastfeeding. These pills can be started from 6 weeks to 6 months after you give birth. Ask your caregiver for more information about when to start taking birth control pills after you give birth. 1  You have forgotten to take a birth control pill.  You have mood changes, such as depression, since starting birth control pills.