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A member asked:

What does it mean if lmp and early ultrasound match by 5 days? does that mean i for sure conceived within + or - 7 days of that date?

A doctor has provided 1 answer

Close enough: You conceived about 14 days before the day your period was due, the one you missed because you became pregnant. If is usually not easy to pin-point the day of conception. If LMP and ultrasound match by 5 days, you are very likely to have conceived within + or - 7 days.

Dr Arnold agreed

Answered 1/27/2015

3.3k views

Thank

Related Questions

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If my ultrasound matches lmp, when would I most likely have conceived?

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Early ultrasound set conception around dec 6. LMP Nov18-ish. Not really known. How likely I conceived from sex on Nov 22?

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I got my first ultrasound at 16 weeks. My LMP came to december 5th and conception date was december 19th. Is it possible i could of conceived jan 10?

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I do not remember my lmp. I had an ultrasound on october 16, 2012 that dated me 6 weeks. Is it possible that i conceived on september 28?

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A member asked:

Ultrasound on 4/12/13, i was 9w4d doc say i conceived on 2/1/13. But 2/1/13 was the 4th day of lmp(21days cycle) could ultrasound be off a few days?

2 doctors weighed in across 2 answers

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