Dog Pregnancy worksheet

1. Expected whelping date: Saturday, May 30, 2026

1. Dogs typically whelp about 63 days after breeding, so add 63 days to the breeding date

   $\text{Mar 28, 2026}\text{+}63\text{\hspace{0.17em}days}$$=\text{Saturday, May 30, 2026}$

2. Because ovulation and fertilization can come several days after mating, the usual window runs from day 58 to day 68

   $\text{May 25, 2026 (day 58) to Jun 4, 2026 (day 68)}$

3. Count the days from breeding to the chosen date

   $\text{Dec 13, 2024}\text{−}\text{Mar 28, 2026}$$=\mathrm{-470}\text{\hspace{0.17em}days}$

4. The chosen date is before the breeding date, so there is no stage yet

   $\text{Not yet bred on this date}$

2. Expected whelping date: Wednesday, Mar 11, 2026

1. Dogs typically whelp about 63 days after breeding, so add 63 days to the breeding date

   $\text{Jan 7, 2026}\text{+}63\text{\hspace{0.17em}days}$$=\text{Wednesday, Mar 11, 2026}$

2. Because ovulation and fertilization can come several days after mating, the usual window runs from day 58 to day 68

   $\text{Mar 6, 2026 (day 58) to Mar 16, 2026 (day 68)}$

3. Count the days from breeding to the chosen date

   $\text{Feb 4, 2027}\text{−}\text{Jan 7, 2026}$$=393\text{\hspace{0.17em}days}$

4. Day 0 to 6 is week 1, so divide by 7, drop the remainder and add 1

   $\frac{393}{7}\text{→ week}$$=57$

5. Match the day count to a stage of pregnancy, to see where she is now

   $\text{Past the usual whelping window}$

3. Expected whelping date: Saturday, Feb 27, 2027

1. Dogs typically whelp about 63 days after breeding, so add 63 days to the breeding date

   $\text{Dec 26, 2026}\text{+}63\text{\hspace{0.17em}days}$$=\text{Saturday, Feb 27, 2027}$

2. Because ovulation and fertilization can come several days after mating, the usual window runs from day 58 to day 68

   $\text{Feb 22, 2027 (day 58) to Mar 4, 2027 (day 68)}$

3. Count the days from breeding to the chosen date

   $\text{Jul 24, 2025}\text{−}\text{Dec 26, 2026}$$=\mathrm{-520}\text{\hspace{0.17em}days}$

4. The chosen date is before the breeding date, so there is no stage yet

   $\text{Not yet bred on this date}$

4. Expected whelping date: Monday, May 18, 2026

1. Dogs typically whelp about 63 days after breeding, so add 63 days to the breeding date

   $\text{Mar 16, 2026}\text{+}63\text{\hspace{0.17em}days}$$=\text{Monday, May 18, 2026}$

2. Because ovulation and fertilization can come several days after mating, the usual window runs from day 58 to day 68

   $\text{May 13, 2026 (day 58) to May 23, 2026 (day 68)}$

3. Count the days from breeding to the chosen date

   $\text{Jul 11, 2026}\text{−}\text{Mar 16, 2026}$$=117\text{\hspace{0.17em}days}$

4. Day 0 to 6 is week 1, so divide by 7, drop the remainder and add 1

   $\frac{117}{7}\text{→ week}$$=17$

5. Match the day count to a stage of pregnancy, to see where she is now

   $\text{Past the usual whelping window}$

5. Expected whelping date: Saturday, Dec 20, 2025

1. Dogs typically whelp about 63 days after breeding, so add 63 days to the breeding date

   $\text{Oct 18, 2025}\text{+}63\text{\hspace{0.17em}days}$$=\text{Saturday, Dec 20, 2025}$

2. Because ovulation and fertilization can come several days after mating, the usual window runs from day 58 to day 68

   $\text{Dec 15, 2025 (day 58) to Dec 25, 2025 (day 68)}$

3. Count the days from breeding to the chosen date

   $\text{Feb 15, 2027}\text{−}\text{Oct 18, 2025}$$=485\text{\hspace{0.17em}days}$

4. Day 0 to 6 is week 1, so divide by 7, drop the remainder and add 1

   $\frac{485}{7}\text{→ week}$$=70$

5. Match the day count to a stage of pregnancy, to see where she is now

   $\text{Past the usual whelping window}$

6. Expected whelping date: Monday, Jan 12, 2026

1. Dogs typically whelp about 63 days after breeding, so add 63 days to the breeding date

   $\text{Nov 10, 2025}\text{+}63\text{\hspace{0.17em}days}$$=\text{Monday, Jan 12, 2026}$

2. Because ovulation and fertilization can come several days after mating, the usual window runs from day 58 to day 68

   $\text{Jan 7, 2026 (day 58) to Jan 17, 2026 (day 68)}$

3. Count the days from breeding to the chosen date

   $\text{Jan 6, 2026}\text{−}\text{Nov 10, 2025}$$=57\text{\hspace{0.17em}days}$

4. Day 0 to 6 is week 1, so divide by 7, drop the remainder and add 1

   $\frac{57}{7}\text{→ week}$$=9$

5. Match the day count to a stage of pregnancy, to see where she is now

   $\text{Late pregnancy (days 43–57)}$

7. Expected whelping date: Sunday, May 4, 2025

1. Dogs typically whelp about 63 days after breeding, so add 63 days to the breeding date

   $\text{Mar 2, 2025}\text{+}63\text{\hspace{0.17em}days}$$=\text{Sunday, May 4, 2025}$

2. Because ovulation and fertilization can come several days after mating, the usual window runs from day 58 to day 68

   $\text{Apr 29, 2025 (day 58) to May 9, 2025 (day 68)}$

3. Count the days from breeding to the chosen date

   $\text{Oct 30, 2025}\text{−}\text{Mar 2, 2025}$$=242\text{\hspace{0.17em}days}$

4. Day 0 to 6 is week 1, so divide by 7, drop the remainder and add 1

   $\frac{242}{7}\text{→ week}$$=35$

5. Match the day count to a stage of pregnancy, to see where she is now

   $\text{Past the usual whelping window}$

8. Expected whelping date: Wednesday, Jul 30, 2025

1. Dogs typically whelp about 63 days after breeding, so add 63 days to the breeding date

   $\text{May 28, 2025}\text{+}63\text{\hspace{0.17em}days}$$=\text{Wednesday, Jul 30, 2025}$

2. Because ovulation and fertilization can come several days after mating, the usual window runs from day 58 to day 68

   $\text{Jul 25, 2025 (day 58) to Aug 4, 2025 (day 68)}$

3. Count the days from breeding to the chosen date

   $\text{Apr 14, 2025}\text{−}\text{May 28, 2025}$$=\mathrm{-44}\text{\hspace{0.17em}days}$

4. The chosen date is before the breeding date, so there is no stage yet

   $\text{Not yet bred on this date}$

9. Expected whelping date: Sunday, Feb 8, 2026

1. Dogs typically whelp about 63 days after breeding, so add 63 days to the breeding date

   $\text{Dec 7, 2025}\text{+}63\text{\hspace{0.17em}days}$$=\text{Sunday, Feb 8, 2026}$

2. Because ovulation and fertilization can come several days after mating, the usual window runs from day 58 to day 68

   $\text{Feb 3, 2026 (day 58) to Feb 13, 2026 (day 68)}$

3. Count the days from breeding to the chosen date

   $\text{Feb 3, 2025}\text{−}\text{Dec 7, 2025}$$=\mathrm{-307}\text{\hspace{0.17em}days}$

4. The chosen date is before the breeding date, so there is no stage yet

   $\text{Not yet bred on this date}$

10. Expected whelping date: Tuesday, Nov 25, 2025

1. Dogs typically whelp about 63 days after breeding, so add 63 days to the breeding date

   $\text{Sep 23, 2025}\text{+}63\text{\hspace{0.17em}days}$$=\text{Tuesday, Nov 25, 2025}$

2. Because ovulation and fertilization can come several days after mating, the usual window runs from day 58 to day 68

   $\text{Nov 20, 2025 (day 58) to Nov 30, 2025 (day 68)}$

3. Count the days from breeding to the chosen date

   $\text{Aug 17, 2026}\text{−}\text{Sep 23, 2025}$$=328\text{\hspace{0.17em}days}$

4. Day 0 to 6 is week 1, so divide by 7, drop the remainder and add 1

   $\frac{328}{7}\text{→ week}$$=47$

5. Match the day count to a stage of pregnancy, to see where she is now

   $\text{Past the usual whelping window}$