FSH
LH
Days
-8
-7
-5
-6
[1] Treloar, A� E�, et al (1967)� Variation of the human menstrual
cycle through reproductive life� Int J Fertil, 12(1 Pt 2), 77-126
[2] Stanford, et al "Timing intercourse to achieve pregnancy:
current evidence�" Obstetrics & Gyn� 100�6 (2002): 1333-134
Ovulation
Fertile
Window
-4
-1
+1
+2
-3
-2
Ovulation
7. Symbols Used
Ovulation
Intercourse
Days
Protected
Intercourse
More information
button
LH test strip
(pink)
Test completed
(pink)
+3
Today button
7
Heavy flow/
Cycle start
Medium flow
Light flow
Spotting
FSH test strip
(blue)
Test completed
(blue)
Pregnancy test
strip (green)