Answer:
<em>The correct option is 2) I will subtract 18 days from the length of my shortest cycle.</em>
Explanation:
In order to use the calendar method of birth control, one might know hot to calculate the beginning and end of the fertile period.
The beginning of the fertile period can be calculated by subtracting 18 days from the length of the shortest cycle. This will determine the first unsafe day.
To calculate the end day, subtract 11 from the longest cycle of the person. This will determine the last unsafe day for the month.
The average length of a cycle cannot be used, but the individual's own shortest and longest cycles have to be used for calculation.
They include injectables (such as Depo-Provera), oral contraceptive pills, patch, ring and the diaphragm. The least effective<span> methods result in 18 or more pregnancies per 100 women in a year, with typical use. They include male and female condoms, withdrawal, sponge, fertility-awareness-based methods, and spermicide.</span>
You can go to your local wildlife ranger station or you could go to a park and ask a ranger there.
Hey there!
There is a window period between being exposed to HIV and getting accurate results as to whether or not you have actually been infected. Many HIV tests can detect an infection two to three weeks after initial exposure. If someone tests negative on many HIV tests after two weeks since the possible exposure, they're likely HIV-negative, but should still get tested after a certain amount of additional time since everyone can react to the infection differently.
Your answer will be your second option.
Hope this helped you out! :-)
