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A member asked:

If ultrasound says i conceived around 10/27, what dates would sex had to have happened for a conception date close to that?

A doctor has provided 1 answer
Dr. Robert Killian answered

Specializes in General Practice

Five Days: The standard answer is that sperm live up to five days after emission. So the closest they can come to is a five day window around conception.

Answered 3/27/2014

4.3k views

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Related Questions

A member asked:

Hi, ultrasound on 31.10.2013 12w0d. Cycle 33days. Lmp 5.8. I had sex on 20.8 and 28.8. Which date is more likely a conception date? Jana

A doctor has provided 1 answer

A member asked:

If my conception date is the 15 of November based on my due date by ultrasound I had sex with my ex on the octubre 29 and November 10 and 11. And I also had sex with my boyfriend on November 20 but I took the after pill same day. Which will be the?

2 doctors weighed in across 2 answers

A member asked:

If ultrasounds date from conception, then why did the sonographer tell me i was exactly as far along as my LMP says? Edds were the same as well.

A doctor has provided 1 answer

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

A member asked:

I'm confused with my conception date i was told by an ultrasound that i concieved on the 13th of october 2013 but had sex on the 4th of october?

A doctor has provided 1 answer

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