Q: I read your article "Enhancing Fertility: What Works".
In the article, you mention three different methods for monitoring the most
fertile days in a woman's cycle. Recently, I heard about a new method that you
did not mention, called "the Cue" by a company called Zetek. I was
wondering if you had ever heard of it and what your take was regarding its effectiveness.
Thank you. --G.A.P.
Thanks for calling my attention to this new product. We have updated the fertility
article and it now includes information about this product. I have no experience
with this product, but can share the following information about it.
The Cue™ is a new product which helps identify peak fertility days. Like
the Clear Plan Easy Fertility Monitor™, it is a palm-sized electronic monitoring
system. Unlike the Clear Plan Monitor, it is based upon measuring the electrolyte
changes (sodium and potassium) in the saliva that accompany ovulation and peak
fertility. (The Clear Plan monitor measures LH and estriol in the urine.) The
Cue gives a user up to 7 days advance notice of ovulation, whereas the Clear
Plan Monitor identifies a user's 5-6 most fertile days. Using an additional
vaginal sensor (purchased separately), the Cue will also confirm ovulation on
the day it occurs. The Cue costs $385 and the optional vaginal sensor costs
an additional $85. The manufacturer, Zetek, will also rent these monitors for
$45 per month. A more advanced model, OvaCue is able to store and retrieve
data from month to month. This monitor costs $485, plus $85 for the vaginal
To use the Cue, you simply put a spoon-sized sensor on your tongue for eight
seconds each morning and record the number shown on the Cue's digital display.
These readings are then plotted on the accompanying "Cue Chart", which
will enable you to identify the 5-7 days before ovulation. To use the vaginal
sensor, insert it into the vagina (it's about the size of a tampon) and connect
it to the unit to take an eight second reading. These readings are plotted on
the Cue Charts and will drop and then rise sharply if ovulation has occurred.
Couples who are ready to get pregnant should plan for intercourse the day the
Cue Peak is identified and every other day after that until ovulation is confirmed.
Once ovulation is confirmed, wait 2-3 weeks. If your menstrual period does not
begin, a pregnancy test may be in order.
For more information about this product, go to www.zetek.com.
Created: 4/30/2001  - Donnica Moore, M.D.