PregaCalc brings together a full suite of reliable tools that help you track your pregnancy stage, calculate due dates, predict fertility windows, estimate conception, and understand trimester progress using medically recognized formulas.

Every calculator applies standard models such as Naegele’s Rule, ultrasound-based gestational mapping, IVF-based offsets, and cycle‑length fertility estimation. These tools are designed for clear guidance and high‑accuracy results, though they remain informational and should be confirmed with your healthcare provider.

Pregnancy Trimester Calculator
Enter your period date, due date, or ultrasound details to instantly see your current trimester and pregnancy stage.

How Many Weeks Pregnant Calculator
Enter your pregnancy weeks and days to quickly convert them into months, trimester, and overall progress.

Estimate Gestational Age Calculator
Enter your LMP, ultrasound details, or due date to instantly estimate gestational age and pregnancy progress.

Pregnancy Week Calculator
Enter your last period or due date to instantly see how far along you are and your estimated due date.

Period Cycle Calculator
Enter your last period details to get your next period date, fertile window, ovulation day, and monthly overview.

Fertile Days Calculator
Enter your period details to get your fertile window and the days when you’re most likely to conceive.

Ovulation Cycle Calculator
Use the ovulation cycle calculator to find your most fertile days, estimate ovulation, and plan for pregnancy.

Pregnancy birth calculator
Enter your period date or due date to estimate your baby’s arrival and track pregnancy progress week by week.

Estimated date of conception edc Calculator
Enter your due date, last period, or ultrasound details to estimate your conception date.

Maternity Weight Gain Calculator
Enter your pregnancy week, height, and weight details to get a personalized weight-gain guideline whether you are expecting twins.

Pregnancy Term Calculator
Enter your last period, due date, ultrasound details, or IVF transfer date for a full pregnancy term calculation.

How Our Calculators Work

We use standard clinical formulas such as Naegele's rule, ultrasound dating and IVF offsets. Inputs like LMP, EDD, ultrasound age, conception or transfer date drive the math. These methods are widely used in clinical settings to provide consistent estimates.

We aggregate formula results and adjust for common variations to give an accurate prediction. Results are intended for informational use only.

Key Pregnancy Stages

Stage Weeks What Happens
First Trimester 1 – 13 Early development of organs, heartbeat begins, hormones rise.
Second Trimester 14 – 27 Baby movement noticeable, anatomy growth, maternal energy improves.
Third Trimester 28 – 40 Rapid growth, lung development, baby moves into birth position.

Understanding Your Pregnancy Journey

Tracking pregnancy with dependable data gives clarity about your baby’s development, major milestones, and how far along you are. Tools like gestational age calculators, conception estimators, and due‑date predictors use established medical methods to keep calculations aligned with real clinical values.

Take Care and Nutrition

  • Eat a balanced diet rich in protein, iron, calcium and folate
  • Take prenatal vitamins as advised by a professional
  • Stay active with approved exercises and avoid risky activities
  • Attend scheduled prenatal visits and follow screening advice

References and Methods

The underlying calculations use common clinical approaches. Examples include Naegele's rule, standard gestational day counts, and IVF offset adjustments. We combine these methods to produce consistent internal results and to support multiple user inputs.

Our goal is to provide accurate estimations. Always consult your care team for confirmation and personalized care.