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A member asked:

Hi, ultrasound on 26.9.2013, 6w5d, 8.4mm. ultrasound on 30.9.2013, 7w1d. i had sex on 20.8 and 28.8. which date is more likely a conception date? jana

A doctor has provided 1 answer
Dr. Gerard Honore answered

Specializes in Fertility Medicine

Close call: That's a really close call. I caution all patients that 'working backwards' is never 100% exact. In a perfect 28 day cycle (which you may not have) with a d14 ovulation (?) conception would likely have been august 25. This one's too close to call based on the dates and the ultrasound, sorry.

Dr Fowler agreed

Answered 10/22/2013

4.8k views

Thank

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