Pregnancy Week (How Many Weeks Pregnant Am I) Calculator
Calculate your pregnancy week and due date from your last menstrual period.
This tool is for informational purposes only and does not replace medical advice. Consult a physician for decisions regarding your health.
Result
23 hafta 2 gün
Pregnancy: 23 weeks 2 days (2nd trimester)
Result in all units
Step-by-step solution
What Is Pregnancy Week?
Pregnancy week shows the time elapsed since your last menstrual period (LMP). Medically, pregnancy is counted from the first day of the last period and lasts an average of 40 weeks (280 days).
How is it calculated?
How Is Pregnancy Week Calculated?
The number of days from your last menstrual period to today is divided by 7:
- Enter the first day of your last period.
- The elapsed days are converted to weeks (weeks and remaining days).
- Estimated due date = LMP + 280 days.
The first 13 weeks are the 1st trimester, weeks 14–26 are the 2nd trimester, and week 27 onward is the 3rd trimester.
Frequently Asked Questions
Does the calculation give my real gestational age?
It is quite accurate for those with regular periods. For the exact gestational age, ultrasound measurements in the first 12 weeks are taken as the basis.
Does birth happen exactly on the calculated date?
No, only a small portion of babies are born on the exact estimated date; weeks 37–42 are considered normal.