I was curious as to whether or not using OPKs and charting increased the chances of conception each month and by how much.
Surprisingly there was almost no statistical information online. I found two different sites with info. Not sure how accurate these are, so I am taking them with a grain of salt, but I thought you may find them interesting.
Does anyone have any additional statistics on this?
One study, published in the journal Human Reproduction, followed women who were trying to get pregnant by having sex at the time in their monthly cycle when they were believed to be most fertile. Of the 346 women in the study, 310 conceived in the first year. The breakdown was like this:
38 percent were pregnant after 1 month.
68 percent were pregnant after 3 months.
81 percent were pregnant after 6 months.
92 percent were pregnant after 12 months.
"One study found that women in their late 20s or early 30s who had sex at
least twice a week got pregnant, on average, within 3 months. For those
35-39, the average was 4 months. Another found that women in their late
20s or early 30s who had sex two days before ovulation ? and only
on that cycle day ? got pregnant 35% of the time. The odds are even
higher if you can predict your ovulation using the techniques I?ll
reveal in Chapter 3: Between 67% and 76% of women under 35 who were
aware of their fertile time conceived in the first month. If you use the methods of fertility awareness I describe in this book."