Find out exactly how many weeks and days pregnant you are. See your current trimester, days remaining, and upcoming milestones.
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Doctors typically count pregnancy from the first day of your last menstrual period (LMP), not from conception. This means at conception, you're already considered '2 weeks pregnant.' A full-term pregnancy is 40 weeks from LMP.
First trimester: weeks 1-13. Second trimester: weeks 14-27. Third trimester: weeks 28-40. Each trimester brings different developments for your baby and different symptoms for you.
Clinics often talk about sex at the 20-week anatomy scan. A written reading can guess earlier from a scan, using Ramzi theory from about 6 weeks or nub theory around 11-14 weeks. It is for fun, not a medical result.
Pregnancy is measured from the first day of your last menstrual period (LMP), not from the day you conceived. This means that by the time you miss your period and get a positive test, you're already considered about 4-5 weeks pregnant. This system can feel confusing, but it's the universal medical standard used by doctors worldwide.
A full-term pregnancy lasts 40 weeks (280 days) from the LMP. However, only about 5% of babies are born exactly on their due date. Most arrive within a two-week window around it.
Your pregnancy is divided into three trimesters, each with its own milestones and developments:
The most critical period of development. Your baby grows from a fertilized egg to a fetus with all major organs formed. The heart starts beating around week 6, and by week 12 your baby is about 2 inches long. This is when Ramzi theory gender prediction becomes possible. Morning sickness is common and your body is producing high levels of hCG.
Often called the "honeymoon phase" — morning sickness typically fades and energy returns. Your baby starts moving, growing from about 3 inches to over 14 inches. The anatomy scan at 18-22 weeks is when most parents find out their baby's gender. Nub theory is most accurate at weeks 12-14, and skull theory works from week 12 onward.
Your baby gains most of their weight during this final stretch — growing from about 2.5 lbs to an average birth weight of 7.5 lbs. You'll feel stronger kicks and stretches. Your doctor visits become more frequent, and you'll prepare for birth. At 37 weeks, your baby is considered full term.
Count the number of days from the first day of your last period to today, then divide by 7. For example, if it's been 98 days since your LMP, you're 14 weeks pregnant (98 ÷ 7 = 14). Our due date calculator does this automatically and shows your complete timeline.
Know your week? Upload your ultrasound for a written gender guess. For fun, not medical.
The How Far Along Am I Calculator is provided for informational and entertainment purposes only. Results are not a substitute for professional medical advice, diagnosis, or treatment. Always consult your doctor or qualified healthcare provider with any questions regarding a medical condition.
Do not make health or medical decisions based on these results. Read our full medical disclaimer.
Explore our in-depth guides on ultrasound-based gender prediction methods:
Keep exploring with our other free pregnancy tools:
Your week determines which methods we can use. Upload your ultrasound and get a written gender prediction report.