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.
1 You start taking the pill again after seven days. 2  You need to take the pill at the same time every day. 3  You could get pregnant if you don't do this, or if you miss a pill, or vomit or have severe diarrhoea. 4  If you have heavy periods or painful periods, the combined pill can help.