Pregnancy — Health and fitness
This directory groups pregnancy tools within Health and fitness. These health and fitness tools present formula-based estimates, not diagnoses or individualized treatment plans. The collection separates body measurements, nutrition, training, pregnancy timing and clinical relationships so that the purpose of a result is clear before you enter personal values. A reference interval can describe a population without identifying the right target for a particular person. Measurement method, age, life stage and the assumptions of the formula all matter.
Start with these tools
Estimate Ovulation Timing from a Period Date
Estimate cycle-based ovulation and a possible conception window from a menstrual period date and stated cycle assumptions.
Due Date Calculator
Estimate a pregnancy due date from the last menstrual period, conception, ultrasound dating, or IVF embryo transfer.
Ovulation Calculator
Estimate ovulation dates and fertile windows for multiple cycles from the last period, average cycle length, and luteal phase.
Period Calculator
Forecast period start and end dates, estimated ovulation, and fertile windows for multiple cycles.
Pregnancy Calculator
Estimate due date, conception date, gestational age, trimester, term window, and pregnancy milestones from five dating methods.
Read each tool’s limitations and confirm the units before using an estimate. Pregnancy dates are approximate and do not establish an exact conception day. Body-size screening measures do not capture every aspect of health or body composition. Nutrition examples illustrate an equation rather than prescribing an intake. A qualified clinician can interpret a result alongside information that a browser tool does not have. Calculations run locally, but shared URLs, downloaded reports and browser history can contain the values you enter. Use the available privacy controls, avoid sending sensitive input sets to other people unintentionally, and seek professional guidance for decisions about your care.
pregnancy
Estimate Ovulation Timing from a Period Date
Estimate cycle-based ovulation and a possible conception window from a menstrual period date and stated cycle assumptions.
Due Date Calculator
Estimate a pregnancy due date from the last menstrual period, conception, ultrasound dating, or IVF embryo transfer.
Ovulation Calculator
Estimate ovulation dates and fertile windows for multiple cycles from the last period, average cycle length, and luteal phase.
Period Calculator
Forecast period start and end dates, estimated ovulation, and fertile windows for multiple cycles.
Pregnancy Calculator
Estimate due date, conception date, gestational age, trimester, term window, and pregnancy milestones from five dating methods.
Estimate Conception Timing from a Due Date
Work backward from an estimated due date to an approximate conception date, with clearly stated dating limits.
Pregnancy Weight Gain Calculator
Compare current pregnancy weight gain with BMI- and pregnancy-type-based total and week-by-week reference ranges.
Frequently asked questions
How do I choose a tool from Pregnancy — Health and fitness?
Start with the quantity you need to solve for, then compare the required inputs and assumptions before entering values.
Are results in Pregnancy — Health and fitness guaranteed?
No. Read the formula, limitations and reference information on the individual calculator. Entered example rates are not current offers or professional advice.
Can I save a calculation from Pregnancy — Health and fitness?
The calculator pages support browser-local project and share controls. Shared links and exported files may contain your inputs.