Medical Questions > Pregnancy Forum > Pregnancy Calendar Conception : When did I Conceive ? Forum

Conception, I just wanted to be sure a piece of mind

I'm having trouble with the day I conceived finding out the date. The docters gave me an ultra sound at 7 weeks said I was due April 8th 2015 although the first day of my last period was around June 27 2015. Me and my partner had started having sex July 8th 2014 on up. There was another partner just one day in July and that was the 22nd. The conception dates they are giving me re leaning more on my partner and not the one just one time in July. I just wanted to be sure a piece of mind
Did you find this post helpful?

User Profile
replied November 30th, 2014
Welcome to ehalthforum,
It is difficult to say who would have fathered the baby if there was no period in between your different sexual encounters, but if there was a period between your two different sexual contacts, the one after periods (closer to ovulation day) would have resulted in pregnancy. If fertile mucus had been present at time of intercourse, sperms can stay alive for 5-7 days and fertilize the egg upon ovulation. After ovulation, egg has only 24-48 hours to get fertilized. The intercourse during your peak fertile days or closer to your ovulation day is likely to result in pregnancy. If your last periods were normal and if your due date (completion of 40 weeks of gestation) is April 8th, 2015, then your probable ovulation day would be around October July 16th, 2014, and probable conception date would lie between July 12th – July 20th, 2014 (calculation based on regular menstrual cycles of 28-30 days). If your due date (completion of 40 weeks of gestation) is known, then you can count back to know your probable conception date and current gestational age. If your periods are regular, you can also calculate your ovulation date and current gestational age based on the menstrual cycle length and last period date. Ultrasound scan done for dating can also help with knowing your probable conception date. The exact results can only be made out after a Paternity test. Visit your doctor/gynecologist for further assistance and clarification.
Take care.

Did you find this post helpful?
DISCLAIMER: "Ask a Doctor" questions are answered by certified physicians and other medical professionals. For more information about experts participating in the "Ask a Doctor" Network, please visit our medical experts page. You may also visit our Pregnancy Calendar Conception : When did I Conceive ? , for moderated patient to patient support and information.

The information provided on eHealth Forum is designed to improve, not replace, the relationship between a patient and his/her own physician. Personal consultation(s) with a qualified medical professional is the proper means for diagnosing any medical condition.