Medical Specialty >> Gynecology

Doctors Lounge - Gynecology Answers

Back to Gynecology Answers List

If you think you may have a medical emergency, call your doctor or 911 immediately. Doctors Lounge ( does not recommend or endorse any specific tests, physicians, products, procedures, opinions, or other information that may be mentioned on the Site.

DISCLAIMER: The information provided on is designed to support, not replace, the relationship that exists between a patient/site visitor and his/her physician. Please read our 'Terms and Conditions of Use' carefully before using this site.

Date of last update: 10/14/2017.

Forum Name: Obstetrics

Question: Which of my due dates are more precise?/How far along am I)?

 ebisanti - Thu May 21, 2009 8:47 am

I have a May 30, 2009 due date according to my last menstrual cycle and a June 20 due date according to sonograms taken during my 2nd trimester (January 27 and March 17, 2009). Last year, I delivered my 2nd child on March 22, 2008, only had two mentruations that were 36 days apart (July 18-21 and August 22-27), and was breastfeeding when I got pregnant with our 3rd child.

Would you kindly inform me as to which due date is more accurate and why and also give me an approximation as to how far along I am? Thanks you.
 Debbie Miller, RN - Wed Jun 10, 2009 12:43 am

User avatar Hello,
Usually ultrasound exams are the most accurate for dating of pregnancy so if I were to guess, I would go with that date. Of course accuracy on estimated due date is within two weeks either way.

Best wishes.

| Check a doctor's response to similar questions

Are you a Doctor, Pharmacist, PA or a Nurse?

Join the Doctors Lounge online medical community

  • Editorial activities: Publish, peer review, edit online articles.

  • Ask a Doctor Teams: Respond to patient questions and discuss challenging presentations with other members.

Doctors Lounge Membership Application

Tools & Services: Follow DoctorsLounge on Twitter Follow us on Twitter | RSS News | Newsletter | Contact us