Dolphin Pregnancy Due Date Calculator
Dolphin Pregnancy Calculator
This calculator estimates an expected dolphin due date using a selected dolphin type and an estimated pregnancy start date. It can also show a simple milestone timeline or a week-by-week schedule, which is useful for planning observations and record-keeping.
How the calculation works
The core idea is to add a typical pregnancy length (in days) to a start date:
\( \text{DueDate} = \text{StartDate} + \text{PregnancyDays} \)
To estimate how far along the pregnancy is today, the calculator measures elapsed days and converts them into a percent:
\[ \text{ProgressPercent} = \frac{\max(0,\text{Today}-\text{StartDate})}{\text{PregnancyDays}} \times 100 \]
Species differences and ranges
Dolphin pregnancy length can vary by species, population, and individual factors. Many commonly known dolphins are often discussed around a 10–12 month timeframe, while some members of the dolphin family (such as orcas and pilot whales) can be longer. This calculator provides an optional min/max range when available, so you can interpret the due date as an estimate rather than a guarantee.
Milestones vs weekly schedule
Summary milestones show key checkpoints (0%, 25%, 50%, 75%, and due date). Weekly schedule shows a list of checkpoints every 7 days until the due date, which is helpful for routine tracking.
Adjusting for your case
If you have reason to believe the pregnancy is slightly shorter or longer, use the Length adjustment (days) input. This simply adds (or subtracts) days from the default length:
\( \text{AdjustedDays} = \text{TypicalDays} + \text{AdjustmentDays} \)
Important note
This tool provides an estimate for planning and educational use. For veterinary or research decisions, rely on professional assessment and species-specific guidance from your institution or local experts.