What is the difference between the rhythm method and NFP?

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What is the difference between the rhythm method and NFP? I heard they are can get confusing at times.
 
Mannyfit75 said:
What is the difference between the rhythm method and NFP? I heard they are can get confusing at times.
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They’re identical iff the woman is really in tune with her body and her periods are perfectly regular.

Otherwise, NFP has much more science and helps a woman to know her fertile days by charting biofeedback like mucosal consistency, basal temperature and cervical positioning. My wife and I successfully used this to space births in our four years of marriage so far.

For NFP to work you need a committment to track biofeedback, some charts, and a good reference or at the very least a class with someone knowledgeable. It helps to have an OB/GYN who supports NFP. My wife was deeply disappointed when she asked hers about it, and the doc wrote her a script for the Pill.
 
I used to think that the rhythm method was the method…um…of the act.

Seriously.

Now I know better…that never seemed to make sense.
 
The rhythm method is just an outdated version of NFP. With the rhythm method ovulation is presumed to occur on day 14 of the cycle and the fertile and non-fertile days are taken from that. It isn’t a terribly accurate way to predict ovulation though, and has been replaced by other methods. I think the failure rate for the method is somewhere around 35% so modern NFP proponents try to distance themselves from the failed method by not including it anymore with modern fertility based methods.
 
Newbie2 said:
I used to think that the rhythm method was the method…um…of the act.
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I think the scientific description of, umm, the rhythm of the act is… sinusoidal motion with amplitude of 15 cm linear displacement, with biological applications 😃
 
Mannyfit75 said:
What is the difference between the rhythm method and NFP? I heard they are can get confusing at times.
Click to expand...
both work on the same principle of avoiding conception by avoiding sex on the woman’s fertile days. The difference is in how those days are calculated. The old rhythm method relied primarily on the calendar, not much use for women with unusual cycle patterns. NFP takes advantage of modern more precise scientific methods of calculation, which narrows the range of days quite a bit. If you want to know specifics of each method visit the threads on the family forum, where the experts reside.

as PP noted, NFP is equally effective in assisting couples trying to conceive, because it is quite effective in identifying fertile days. The success of any method lies primarily not in how scientifically versed the couple are, but how well they communicate and share responsibility for family planning. NFP used properly with the right spirit enhances marital intimacy magnificently.
 
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