A few people have asked me if they should get the paper book or the ebook (Kindle, iPad, etc.) I have a Kindle so I understand the question — books with lots of illustrations and charts don’t work very well on the Kindle.
Impatient Woman’s Guide should work fine on the Kindle or iPad, though, because I didn’t include any graphs, illustrations, or charts. I figured you can get those online now. A lot of books include temperature charts, for example, but almost everyone charts online now so I didn’t see the point. Same for a BMI chart — easier to do that in an online calculator. There is one table (for troubleshooting fertility problems), but that should look OK.
You might want the paper version if you’re going to use lots of Post-it notes to mark the location of your favorite tips. You can do this on the Kindle too, but I’ve always found the function to be awkward.
So bottom line: Either is fine.