Quickly find out how far along you are in your pregnancy, your estimated due date, and key milestones with the free Pregnancy Calculator from Calculator Hub HQ.
The Pregnancy Calculator from Calculator Hub HQ helps you accurately estimate your current pregnancy week, due date, and key milestones based on the first day of your last menstrual period (LMP) or conception date.
Whether you’re trying to conceive or already expecting, this easy-to-use tool gives you instant insight into your pregnancy timeline. It’s a reliable and free solution trusted by thousands of moms.
Enter the first day of your last period or conception date. Our calculator uses standard medical formulas (Naegle’s Rule) to estimate:
| Trimester | Weeks | What Happens |
|---|---|---|
| First | Weeks 1–12 | Baby’s organs begin to form |
| Second | Weeks 13–26 | Movement starts, gender may be revealed |
| Third | Weeks 27–40 | Rapid growth and delivery preparation |
Our calculator provides a medically accurate estimate using your last menstrual period or conception date. However, only a healthcare provider can confirm your exact gestational age.
Yes! You can also input your conception date if you know it. For the most accurate results, use the LMP whenever possible.
Pregnancy typically lasts 40 weeks (280 days) from the first day of your last period, although full-term pregnancies range from 37 to 42 weeks.
We recommend scheduling your first prenatal visit as soon as you confirm pregnancy and have your estimated due date. Early check-ups are crucial for both mother and baby.
