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.
Once you start the first pack, pay no mind to when you bleed or your period as far as taking the pills goes. Just keep taking one pill a day, taking the 21 days of active pills then take the 7 days of inactive ones. The first pack is the only time you worry about starting on your period. The rest of the packs, just take them in order. Eventually your period should come during the week of the inactive pills.