Pregnancy Due Date
Calculator
Estimate your due date with our free and simple calculator.


How to Use the Pregnancy Calculator
Enter the first day of your last menstrual period (LMP) or your conception date to estimate your due date and pregnancy timeline. Our calculator gives you accurate results to help you plan your pregnancy journey with confidence.
Expected Due Date: None
Gestational Age: None
NOTE: This calculator provides estimates based on averages and is not a diagnostic tool.
Understanding Your Pregnancy Timeline
Pregnancy typically lasts around 40 weeks, counted from the first day of your last menstrual period. Here’s a breakdown of the three trimesters:
- First Trimester (Weeks 1–12): The early development of the fetus, including the formation of major organs.
- Second Trimester (Weeks 13–26): The fetus grows rapidly, and movement begins.
- Third Trimester (Weeks 27–40): Final growth and preparation for birth.
What are My Next Steps?
First — take a deep breath. Don’t worry about being pregnant until you’re sure. A missed period can be a sign, but it doesn’t necessarily mean you’re pregnant.
Second — confirm your pregnancy with a test and ultrasound. CAPS offers free, lab-certified pregnancy tests verified by a nurse. We may also provide a free ultrasound to determine how far along you are, with results available during your appointment.
Third — explore all of your pregnancy options. This will help you make an informed decision. CAPS is here to answer all your questions about abortion, adoption, and parenting in a safe, nonjudgmental space.




Contact CAPS Pregnancy+ Medical Clinics
Ready to get started? Contact us for free pregnancy tests, ultrasounds, and support. We’re here to guide you every step of the way.
Call us at (619) 337-8080 or make an appointment online. All services are confidential and free!
Please note that CAPS does not provide or refer for abortion services.