U.S. doctors online nowAsk doctors free
Florence, KY
A 30-year-old female asked:

If my edd is 08/08/18, and intercourse took place on 11/01/17, 11/11 and 11/17 is there a way of narrowing down which day it may have been? i don't ha

2 doctor answers2 doctors weighed in
Dr. John Berryman
Obstetrics and Gynecology 56 years experience
EDD ?'s: Since the fetus has growth patterns which vary sometimes from "average" measurements (which are those which are used to calculate the "due date") the "EDD" may not be totally accurate. If your concerns are regarding the potential parentage, genetic tests can confirm same via DNA when the baby is born.
Created for people with ongoing healthcare needs but benefits everyone.
Dr. R Holbrook jr.
Obstetrics and Gynecology 45 years experience
Depends if early U/S: What was your EDD based on? Was it based on a very early vaginal ultrasound? If so, then subtract 2 weeks from the gestational age that the ultrasound said. Example: U/S said 6 weeks 2 days. Go back 4 weeks and 2 days on the calendar from the date of the U/S. That might be the best guess.
Created for people with ongoing healthcare needs but benefits everyone.
Last updated Mar 20, 2018


Content on HealthTap (including answers) should not be used for medical advice, diagnosis, or treatment, and interactions on HealthTap do not create a doctor-patient relationship. Never disregard or delay professional medical advice in person because of anything on HealthTap. Call your doctor or 911 if you think you may have a medical emergency.