Thursday, February 14, 2008

Ovulation Calendar

Ovulation Calendar

Keeping an ovulation calendar might be helpful in understanding your menstrual cycle An ovulation calender is also helpful if you are trying to get pregnant trying to avoid getting pregnant or just interested in learning more about the rhythms of your body Keeping an ovulation calendar just means keeping track of your periods and doing some simple calculations The goal is to figure out your most fertile days the days youre most likely to get pregnant Ovulation refers to the release of an egg from your ovary which happens around the same time in each menstrual cycle
Your most fertile days are approximately 18 to 11 days before your next period There is a smaller window within that time when you are most likely to get pregnant but an ovulation calendar isnt precise enough to show the exact days
Making a Calendar Begin with a regular monthly calendar Circle the day your period starts the first day of bleeding Continue doing this for eight to 12 months so that you can get a good idea of the length of your menstrual cycle Your cycle goes from the first day of bleeding until the day before your next period begins Dont just guess about your cycle length being a day or two off can make a difference Now count the number of days in the shortest cycle Subtract 18 from that number Take the difference and starting with the first day of your next period count that many days forward and mark the calendar with an X That gives you the first day youre likely to be fertile Next subtract 11 from the number of days in your longest cycle Take the difference and starting with the first day of your next period count that many days forward and mark the calendar This is the last day youre likely to be fertile For example if your shortest cycle was 27 days subtracting 18 gives you nine So nine days after your next period starts is your first likely fertile day If your longest cycle was 30 days subtracting 11 gives you 19 Nineteen days after your next period starts is your last likely fertile day If youre using a hormonal method of birth control like the pill the patch or DepoProvera the hormones in your medication are determining when you get your period Youll need to stop all forms of hormonal birth control before beginning to make your ovulation calendar If you are trying to get pregnant be sure to have intercourse during your fertile period as often as you can or want If you are trying not to get pregnant either avoid intercourse entirely during your fertile period or use a barrier method like a condom or diaphragm However ovulation calendars are not considered a reliable method of birth control Ovulation simply is not completely predictable Of 100 women who use the calendar method as birth control for one year without a single mistake nine will become pregnant.

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