How do you use CycleBeads?
CycleBeads®, a color-coded string of beads, facilitates use of the Standard Days Method® (SDM) by helping women track their menstrual cycle and identify their fertile days. As described below, each bead represents a day of a woman’s menstrual cycle.

![]() |
On the first day of your period, move the BLACK RING to the RED bead. |
![]() |
Mark the first day of your period on your calendar. You need to know this day if you forget to move the ring. |
![]() |
Each day, move the ring in the direction of the arrow on the cylinder. |
![]() |
Continue to move the ring one bead each day, even on days when you have your period. |
![]() |
The day your next period starts, move the ring to the RED bead again. Skip over any remaining brown beads. |
![]() |
When the ring is on a WHITE bead, you ARE likely to get pregnant if you have unprotected sex. |
![]() |
When the ring is on any of the BROWN beads, you are not likely to get pregnant if you have unprotected sex. |
For information on how individuals and programs can order CycleBeads, click here. A toolkit to help programs estimate CycleBeads® demand is also found on this page.