Pregnancy Calculator
Enter your last menstrual period (LMP) or conception date to calculate your due date, current gestational age, trimester, and key milestones.
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Frequently Asked Questions
What happens each trimester?
First trimester (weeks 1–12): organ formation, highest miscarriage risk. Second trimester (weeks 13–26): fetus grows rapidly, movement felt. Third trimester (weeks 27–40): lungs mature, baby gains weight and turns head-down.
When do pregnancy symptoms typically start?
Most common first symptoms appear at 4–6 weeks: nausea, fatigue, breast tenderness, and frequent urination. Some women notice implantation spotting at 6–12 days after conception.
What prenatal tests are done each trimester?
First trimester: blood type, CBC, genetic screening (NIPT), nuchal translucency ultrasound. Second trimester: anatomy ultrasound (18–20 weeks), glucose challenge test. Third trimester: Group B strep test, fetal position check, NST if overdue.