Free Pregnancy Calculators & Tools
Accurate pregnancy calculators trusted by expecting mothers nationwide. Calculate due dates, track your pregnancy week by week, monitor early pregnancy, and plan for conception.
Due Date & Pregnancy Dating
Pregnancy Calendar Calculator
Complete pregnancy timeline from conception or last period. Shows your due date, current week, and full 40-week calendar with important milestones.
Calculate Now →Due Date Calculator
Calculate when your baby will arrive using your last period date or conception date. Get your estimated delivery date in seconds.
Calculate Now →Conception Calculator
Find out when you conceived based on your due date or current pregnancy week. Calculates your conception date and fertile window.
Calculate Now →Gestational Age Calculator
Calculate exact gestational age from last period, conception date, ultrasound measurement, or IVF transfer. Medical professional format.
Calculate Now →IVF Due Date Calculator
Specialized calculator for IVF pregnancies. Enter your embryo transfer date for accurate dating of 3-day or 5-day transfer cycles.
Calculate Now →Pregnancy Tracking
Pregnancy Week Calculator
Find out exactly how many weeks pregnant you are today. Shows your current week, trimester, and how far along you are in your pregnancy.
Calculate Now →Pregnancy Month Calculator
Convert pregnancy weeks to months and see which month of pregnancy you're in. Understand the week-to-month conversion clearly.
Calculate Now →Early Pregnancy & Conception
Ovulation Calculator
Calculate your fertile window and ovulation day. Find the best days to conceive based on your cycle length and last period date.
Calculate Now →Implantation Calculator
Calculate when implantation likely occurred and when you can take a pregnancy test. Shows the implantation window based on ovulation.
Calculate Now →Pregnancy Test Calculator
Find the best time to take a pregnancy test for accurate results. Shows earliest test date and recommended testing day with accuracy rates.
Calculate Now →Beta hCG Calculator
Track hCG doubling time between blood tests. Compare your levels to normal ranges and see if your pregnancy hormone is rising appropriately.
Calculate Now →Labor & Special Tools
Contraction Timer
Time your labor contractions to know when it's time to go to the hospital. Tracks frequency, duration, and patterns automatically.
Start Timer →Chinese Gender Calendar
Predict baby's gender using the ancient Chinese birth chart. Based on mother's lunar age and conception month. Just for fun!
Try It →Why Expecting Mothers Trust Our Calculators
Medical Accuracy
Our calculators use the same dating methods as obstetricians and midwives. Based on established medical guidelines and pregnancy research.
Always Free
No hidden costs, no sign-up required, no credit card needed. All pregnancy calculators are completely free with unlimited use.
Privacy Protected
Your pregnancy information stays private. We don't collect, store, or share your personal data. Calculate with confidence.
Pregnancy Calculator Questions
Which pregnancy calculator should I use?
Start with the Pregnancy Calendar Calculator if you want a complete timeline. Use the Due Date Calculator for a quick delivery date. If you did IVF, use the IVF Due Date Calculator. For tracking early pregnancy, try the hCG Calculator or Implantation Calculator.
How accurate are pregnancy calculators?
Pregnancy calculators provide estimates within 3-5 days of accuracy. Your actual delivery date may vary since only about 5% of babies arrive on their exact due date. First trimester ultrasounds are the most accurate way to confirm your due date.
Should I calculate from last period or conception date?
If you know your exact conception date (from tracking ovulation or IVF), that method is more accurate. Most women use their last period date since it's easier to remember. Our calculators support both methods.
When should I take a pregnancy test?
Use our Pregnancy Test Calculator to find the best testing day. Generally, wait until the first day of your missed period for 99% accuracy. Some early detection tests work 5-6 days before your missed period, but results are less reliable.
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