🤰 Pregnancy Calculator

**What is a Pregnancy Calculator?** A pregnancy calculator (also called a due date calculator or gestation calculator) estimates your baby's due date and current week of pregnancy based on the first day of your Last Menstrual Period (LMP). It uses Naegele's Rule — adding 280 days (40 weeks) from LMP — and adjusts for your specific cycle length. Understanding your due date and current gestational age helps you plan prenatal visits, track fetal development, and prepare for delivery.

**How to Use the Pregnancy Due Date Calculator** Using our free pregnancy calculator is simple: enter the first day of your last menstrual period (LMP) and your average cycle length (default 28 days). Click Calculate and instantly see your estimated due date, how many weeks pregnant you are, your current trimester, conception date, and days remaining until your due date. The tool updates results in real-time so you can track your pregnancy week by week.

**Why Use Adwatak's Pregnancy Calculator?** Adwatak's pregnancy calculator is 100% free, works entirely in your browser (no data uploaded), and supports custom cycle lengths from 21 to 35 days. While most calculators assume a standard 28-day cycle, our tool adjusts for longer or shorter cycles using the modified Naegele's Rule for more accurate results. Whether you're in Saudi Arabia, UAE, Turkey, Indonesia, or anywhere in the world, this tool works for everyone.

**Understanding Pregnancy Trimesters** Pregnancy is divided into three trimesters, each approximately 13 weeks long. The First Trimester (weeks 1-13) is when the baby's major organs form. The Second Trimester (weeks 14-26) is when fetal movement is felt and the baby grows rapidly. The Third Trimester (week 27+ ) is when the baby gains weight and prepares for birth. Knowing your trimester helps you understand what to expect at each stage and when to schedule specific prenatal tests.