Period worksheet

1. Next period expected: Saturday, Nov 15, 2025

1. Count one cycle forward from the day your last period started. That's when the next one is expected

   $\text{Oct 20, 2025}\text{+}26\text{\hspace{0.17em}days}$$=\text{Saturday, Nov 15, 2025}$

2. Find the last day. The first day counts as day 1, so a 3-day period ends 2 days after it starts

   $\text{Nov 15, 2025}\text{+}2\text{\hspace{0.17em}days}$$=\text{Nov 17, 2025}$

3. Each later period comes another 26 days on. Multiply first, then round, so the dates don't drift (cycle 3 shown)

   $\text{Oct 20, 2025}\text{+}3\text{×}26\text{\hspace{0.17em}days}$$=\text{Jan 6, 2026}$

2. Next period expected: Friday, Feb 21, 2025

1. Count one cycle forward from the day your last period started. That's when the next one is expected

   $\text{Jan 24, 2025}\text{+}28\text{\hspace{0.17em}days}$$=\text{Friday, Feb 21, 2025}$

2. Find the last day. The first day counts as day 1, so a 6-day period ends 5 days after it starts

   $\text{Feb 21, 2025}\text{+}5\text{\hspace{0.17em}days}$$=\text{Feb 26, 2025}$

3. Each later period comes another 28 days on. Multiply first, then round, so the dates don't drift (cycle 3 shown)

   $\text{Jan 24, 2025}\text{+}3\text{×}28\text{\hspace{0.17em}days}$$=\text{Apr 18, 2025}$

3. Next period expected: Tuesday, May 27, 2025

1. Count one cycle forward from the day your last period started. That's when the next one is expected

   $\text{May 3, 2025}\text{+}24\text{\hspace{0.17em}days}$$=\text{Tuesday, May 27, 2025}$

2. Find the last day. The first day counts as day 1, so a 5-day period ends 4 days after it starts

   $\text{May 27, 2025}\text{+}4\text{\hspace{0.17em}days}$$=\text{May 31, 2025}$

3. Each later period comes another 24 days on. Multiply first, then round, so the dates don't drift (cycle 3 shown)

   $\text{May 3, 2025}\text{+}3\text{×}24\text{\hspace{0.17em}days}$$=\text{Jul 14, 2025}$

4. Next period expected: Sunday, Aug 23, 2026

1. Count one cycle forward from the day your last period started. That's when the next one is expected

   $\text{Jul 30, 2026}\text{+}24\text{\hspace{0.17em}days}$$=\text{Sunday, Aug 23, 2026}$

2. Find the last day. The first day counts as day 1, so a 4-day period ends 3 days after it starts

   $\text{Aug 23, 2026}\text{+}3\text{\hspace{0.17em}days}$$=\text{Aug 26, 2026}$

3. Each later period comes another 24 days on. Multiply first, then round, so the dates don't drift (cycle 3 shown)

   $\text{Jul 30, 2026}\text{+}3\text{×}24\text{\hspace{0.17em}days}$$=\text{Oct 10, 2026}$

5. Next period expected: Saturday, Jul 12, 2025

1. Count one cycle forward from the day your last period started. That's when the next one is expected

   $\text{Jun 18, 2025}\text{+}24\text{\hspace{0.17em}days}$$=\text{Saturday, Jul 12, 2025}$

2. Find the last day. The first day counts as day 1, so a 6-day period ends 5 days after it starts

   $\text{Jul 12, 2025}\text{+}5\text{\hspace{0.17em}days}$$=\text{Jul 17, 2025}$

3. Each later period comes another 24 days on. Multiply first, then round, so the dates don't drift (cycle 3 shown)

   $\text{Jun 18, 2025}\text{+}3\text{×}24\text{\hspace{0.17em}days}$$=\text{Aug 29, 2025}$

6. Next period expected: Friday, Mar 5, 2027

1. Count one cycle forward from the day your last period started. That's when the next one is expected

   $\text{Feb 1, 2027}\text{+}32\text{\hspace{0.17em}days}$$=\text{Friday, Mar 5, 2027}$

2. Find the last day. The first day counts as day 1, so a 5-day period ends 4 days after it starts

   $\text{Mar 5, 2027}\text{+}4\text{\hspace{0.17em}days}$$=\text{Mar 9, 2027}$

3. Each later period comes another 32 days on. Multiply first, then round, so the dates don't drift (cycle 3 shown)

   $\text{Feb 1, 2027}\text{+}3\text{×}32\text{\hspace{0.17em}days}$$=\text{May 8, 2027}$

7. Next period expected: Wednesday, Jul 1, 2026

1. Count one cycle forward from the day your last period started. That's when the next one is expected

   $\text{May 27, 2026}\text{+}35\text{\hspace{0.17em}days}$$=\text{Wednesday, Jul 1, 2026}$

2. Find the last day. The first day counts as day 1, so a 7-day period ends 6 days after it starts

   $\text{Jul 1, 2026}\text{+}6\text{\hspace{0.17em}days}$$=\text{Jul 7, 2026}$

3. Each later period comes another 35 days on. Multiply first, then round, so the dates don't drift (cycle 3 shown)

   $\text{May 27, 2026}\text{+}3\text{×}35\text{\hspace{0.17em}days}$$=\text{Sep 9, 2026}$

8. Next period expected: Tuesday, Jun 30, 2026

1. Count one cycle forward from the day your last period started. That's when the next one is expected

   $\text{May 26, 2026}\text{+}35\text{\hspace{0.17em}days}$$=\text{Tuesday, Jun 30, 2026}$

2. Find the last day. The first day counts as day 1, so a 3-day period ends 2 days after it starts

   $\text{Jun 30, 2026}\text{+}2\text{\hspace{0.17em}days}$$=\text{Jul 2, 2026}$

3. Each later period comes another 35 days on. Multiply first, then round, so the dates don't drift (cycle 3 shown)

   $\text{May 26, 2026}\text{+}3\text{×}35\text{\hspace{0.17em}days}$$=\text{Sep 8, 2026}$

9. Next period expected: Wednesday, May 7, 2025

1. Count one cycle forward from the day your last period started. That's when the next one is expected

   $\text{Apr 11, 2025}\text{+}26\text{\hspace{0.17em}days}$$=\text{Wednesday, May 7, 2025}$

2. Find the last day. The first day counts as day 1, so a 7-day period ends 6 days after it starts

   $\text{May 7, 2025}\text{+}6\text{\hspace{0.17em}days}$$=\text{May 13, 2025}$

3. Each later period comes another 26 days on. Multiply first, then round, so the dates don't drift (cycle 3 shown)

   $\text{Apr 11, 2025}\text{+}3\text{×}26\text{\hspace{0.17em}days}$$=\text{Jun 28, 2025}$

10. Next period expected: Friday, Apr 25, 2025

1. Count one cycle forward from the day your last period started. That's when the next one is expected

   $\text{Mar 26, 2025}\text{+}30\text{\hspace{0.17em}days}$$=\text{Friday, Apr 25, 2025}$

2. Find the last day. The first day counts as day 1, so a 5-day period ends 4 days after it starts

   $\text{Apr 25, 2025}\text{+}4\text{\hspace{0.17em}days}$$=\text{Apr 29, 2025}$

3. Each later period comes another 30 days on. Multiply first, then round, so the dates don't drift (cycle 3 shown)

   $\text{Mar 26, 2025}\text{+}3\text{×}30\text{\hspace{0.17em}days}$$=\text{Jun 24, 2025}$