PreMami|Pregnancy Calculator & Perinatology Tools

Accurate pregnancy calculator based on LMP, perinatology due date, gestational age, EDD calculator pregnancy, EDC calculator, IVF due date calculator and pregnancy week calculator. Track your estimated delivery date, find out how many weeks pregnant am I and follow the pregnancy calendar day by day.

Calculate My Due Date All Tools

Quick Pregnancy Due Date Calculator

Enter your LMP (first day of last menstrual period) and cycle length to get your estimated due date instantly.

Pregnancy Tips & Guides

Track Your LMP

Accurately recording your LMP is the first step for every pregnancy due date calculator, gestational age calculator and pregnancy week calculator.

Regular Perinatology Check-ups

Follow the perinatology due date schedule and use our maternity calculator to never miss an appointment.

Balanced Diet & Weight

Keep your gestation weight within the healthy range calculated by our pregnancy weight gain calculator.

Complete Pregnancy & Perinatology Calculator Toolkit

Pregnancy Due Date Calculator

Reliable EDD calculator pregnancy based on LMP. Get your estimated delivery date and estimated due date in seconds.

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IVF Due Date Calculator

Specialised IVF due date calculator for embryo-transfer pregnancies. Support day-3 and day-5 blastocyst gestational age calculation.

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Pregnancy Calendar

Interactive pregnancy calendar and pregnancy tracker showing daily fetal development and symptoms.

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Pregnancy Week Calculator

Instantly answer “how many weeks pregnant am I?” and convert days into gestational age weeks & days.

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Fetal Weight Calculator

Estimate fetal weight from ultrasound parameters. A must-have perinatology calculator for parents and providers.

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Pregnancy Weight Gain Calculator

Healthy weight-gain range for every BMI. Recommended by maternity calculator guidelines.

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Pregnancy BMI Calculator

Check pre-pregnancy and current BMI with this quick maternity calculator and get personalised advice.

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Fetal Movement Counter

Easy kick counter for the 3rd trimester. Part of our wider pregnancy tracker suite.

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Contraction Timer

Time contractions with one tap. Know when to leave for hospital using this simple maternity calculator.

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Ovulation Calculator

Predict your fertile window and ovulation day. The first step in any pregnancy calculator journey.

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Safe Period Calculator

Quick LMP calculator pregnancy helper for natural contraception or planning.

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Checkup Schedule

Never miss an ultrasound or lab test. Automatic reminders based on perinatology due date standards.

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About PreMami Pregnancy Calculator

PreMami is a professional-grade pregnancy calculator and perinatology platform covering LMP, gestational age, EDD, EDC, IVF due date, pregnancy wheel, pregnancy calendar and pregnancy tracker tools.

All calculators are validated against ACOG and WHO guidelines to give expectant parents and providers the most accurate estimated delivery date possible.

Clinically Accurate
Easy to Use
Comprehensive
100 % Free

Frequently Asked Questions

Our EDD calculator pregnancy uses the improved Naegele rule and is validated against perinatology calculator standards. It is as accurate as the dating methods used in clinics.

LMP stands for the first day of your Last Menstrual Period. Every LMP calculator pregnancy tool, including our pregnancy wheel, starts from this date.

Enter your embryo-transfer date and type (3-day or 5-day). The IVF due date calculator automatically adds the correct gestational age to give your estimated due date.

Yes—after entering your LMP the calculator displays current gestational age in weeks and days, updating the answer to “how many weeks pregnant am I?” automatically.

Absolutely. The pregnancy calendar and pregnancy tracker adapt to your estimated due date and send week-by-week notifications based on perinatology due date standards.

Both mean the same—Estimated Date of Delivery. You will see EDD calculator pregnancy and EDC calculator used interchangeably in most perinatology literature.

Yes. Enter your average cycle length in the LMP calculator pregnancy field and the tool adjusts your gestation and estimated delivery date accordingly.

No data is saved or transmitted. All calculations run locally in your browser, keeping your pregnancy calculator results completely private.