Calculators > Ovulation, Cycles, Pregnancy

Conception, Pregnancy, Cycle Calculators

Web and mobile preconception, pregnancy, and menstrual fertility app calculators: forecast and track your cycles, plan and track pregnancy, calculate your cycle statistics, and more!

• Age and Fertility Calculator

  Calculate your fertility based on your current age, or at the age you plan to start your family, and see the likelihood of getting pregnant at that age.

• Pregnancy Due Date Calendar Chart

  Check your estimated due date based on actual/projected period start date. Pregnancy wheel-like, but instantly shows all possible due dates for the year. 2024 Pregnancy Calendar, 2025 Pregnancy Calendar

• Advanced Ovulation Calculator and Conception Planner

  (WhenMyBaby.com)

  Calculate when you'll ovulate, which are your most fertile days, and TTC schedule. This advanced ovulation calculator is miles ahead of all the rest. Try and see!

• Ovulation Calculator Calendar

  (MyMonthlyCycles.com)

  Creates a complete ovulation and fertile days forecast calendar for your next several cycles.

• Pregnancy Test Calculator

  (WhenMyBaby.com)

  Time to pregnancy test? Calculate when to take a home pregnancy tests based on last period or ovulation date.

• Implantation Calculators

  (WhenMyBaby.com)

  Calculate likely implantation dates; Simulate two-week-wait cycle events

• Ovulation Prediction Test Kit Calculator

  (WhenMyBaby.com)

  Calculate when to use your ovulation prediction test kit, plus generate OPK test results tracking chart.

• Menstrual Period Calculator

  (MyMonthlyCycles.com)

  Forecasts your next periods based on your last period and average cycle.

• Period Calculator and Planner

  (MyMonthlyCycles.com)

  Calculates if your period will occur on a specific date you're planning.

• PMS Calculator

  (MyMonthlyCycles.com)

  Advanced period calculator forecasts menstrual cycle and PMS days, with option to use varying cycle lengths.

• Daily Symptom and Cycle Forecast

  (MyMonthlyCycles.com)

  Calculates which cycle and PMS symptoms might occur based on patterns in past cycles. Includes today's fertility status.

• Next Period Calculator, Pregnancy Testing

  (MyMonthlyCycles.com)

  More precisely calculates your next period and when to pregnancy test based on ovulation.

• Am I Late?

  (MyMonthlyCycles.com)

  Quickly check if your period is late, and, if late, how late?

• Missed Period Calculator

  (MyMonthlyCycles.com)

  See if you've missed one or more periods/cycles.

• Menopause Calculator

  (MyMonthlyCycles.com)

  How long until menopause may start, or since it began

• Menstrual Period Time Span

  (MyMonthlyCycles.com)

  Time lines your period from menarche to menopause, taking into account pregnancy.

• Luteal Phase Calculator

  (MyMonthlyCycles.com)

  Calculates your luteal phase (number of days post ovulation).

• Cycle Statistics Calculator

  (WhenMyBaby.com)

  Calculate shortest, longest, average cycle length.

• Cycle Today Calculator

  (WhenMyBaby.com)

  Calculate where you are in your cycle today: phase, CD, DPO. Plus your key cycle dates chart.

• Chinese Gender Calculator

  (MyMonthlyCycles.com)

  According to legend, using mom's age at conception and baby's conception month, gender calendar predicts boy or girl.

• Basal Body Temperature Adjustment Calculator

  (WhenMyBaby.com)

  For BBT Charting - adjust temperature based on early/late rising.

  Mobile BBT Corrector

  (MyMonthlyCycles)

• Pregnancy Due Date Calculator - LMP

  (MyMonthlyCycles.com)

  Estimates due date based on last menstrual period.

• Pregnancy Due Date Calculator - Conception

  (MyMonthlyCycles.com)

  Estimates due date based on calculated conception date.

• Pregnancy Planner Calculator

  (MyMonthlyCycles.com)

  Calculate approximately when your baby would be due if you conceived on {the date you fill in}

• Retro Conception Calculator

  (MyMonthlyCycles.com)

  Calculates when anyone was conceived, based on date of birth.

• Reverse Pregnancy Calculator

  (MyMonthlyCycles.com)

  Baby planner: indicate when you want your baby born, and see approximately when you need to conceive.

• More Pregnancy Due Date Calculators

  (WhenMyBaby.com)

  Calculate when your baby will be born based on LMP, calculated conception date, or projected/actual conception.

• Pregnancy Calendar

  (WhenMyBaby.com)

  Daily pregnancy calendar in a variety of formats, including gestational age and countdown to baby.

• Pregnancy Week Calculator

  (WhenMyBaby.com)

  See when you'll be in any week of your pregnancy, and how long until or since that date.

• Dog Pregnancy Calculator

  (WhenMyBaby.com)

  Calculate dog's due date based on first mating.

• Cat Pregnancy Calculator

  (WhenMyBaby.com)

  Calculate cat's due date based on first mating.

• Family Growth Calculator

  (WhenMyBaby.com)

  Family age calendar based on mom and dad and each child: watch your family grow!

• Age Difference Calculator

  (WhenMyBaby.com)

  Exact age difference between you and anyone, or any two people!

• Pregnancy Test Gallery

  (WhenMyBaby.com)

  View pregnancy test photos by brand, DPO, outcome. Add your HPTs too!