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Monitoring
fertility hormones


Charting your fertility
on the hormone fertility chart


Observing your cervical mucus

Monitoring cervical mucus

Charting your fertility
on the cervical mucus chart


The mucus cycle

Arousal Fluid
and Seminal Fluid Instructions


Monitoring basal body
temperature





 
Fig 5a: Marquette fertility chart – example of first 6 cycles

Fig. 5b: Marquette fertility chart – example of second 6 cycles

 

Charting Your Fertility
on the Hormone Fertility Chart


The readings from the Clearblue fertility monitor can be placed on the Marquette charting system for easy interpretation and for following the simple instructions for avoiding or achieving pregnancy (See example charts below).  The Marquette chart has room for 6 cycles of charting if the cycles are less than 35 days in length.

The readings of the Clearblue monitor are recorded as:

L
for low fertility
H
for high fertility
P
for peak fertility

The days of the period (menses) are recorded as:

3
for heavy bleeding
2
for moderate bleeding
1
for light bleeding

The row of blocks beneath the fertility recordings provides room for recording acts of intercourse as "I".  The couple is advised to place a check (or X) on the appropriate line in the "Couple Intention Recording" area (at the bottom of the form) before commencing each cycle indicating their intention to achieve or avoid pregnancy.  

The date and day of the cycle should be recorded in the blocks provided above the fertility recordings.  For each cycle an arrow should be drawn through the days that the couple understand are the days of fertility.

The chart in Figure 5a shows that fertility begins on day 6 for the first 6 cycles

The earliest Peak day on the monitor for the first 6 cycles was on day 14 in cycle #5. 

The latest Peak day for the first 6 cycles was on day 17 in cycles #2, 3, and 6.  Therefore, for the next cycle, fertility will begin on day (14 minus 6 =) 8.  (See Fig. 5b for an example chart of the second 6 cycles)

Fertility will end on day (17 + 3 =) 20 or the last Peak day of that cycle plus 3 full days – whichever comes first.

Notice that this couple indicated they intended to avoid pregnancy for each of the 6 cycles and declared so by placing an "X" in the blanks provided.  Notice that they recorded acts of intercourse only during the infertile phases of the 6 cycles.  During cycle 4 there were no "Peak" recordings.  That could have happened because the monitor missed the LH surge or because the woman did not ovulate.  The monitor asked for 20 test strips, and the woman recorded 20 High days.  There is no formula for an alternative end of the cycle during the first 6 cycles when that happens.  The couple chose to have intercourse on the first low day after the 20 high days!  In the next cycle (see Figure 5b), however, the couple knew that day 20 would be the end of the fertile phase if the monitor did not record a Peak.  The first 6 cycles varied only by 3 days.