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How To Determine The Date Of Conception?

Posted on Thu, 6 Aug 2015

Question: I had a scan it said I'm 6 weeks 5 days what date did I concieve please

Answered by Dr. Ramadevi Wani (16 minutes later)

Brief Answer:
You probably have conceived around 14th XXXXXXX

Detailed Answer:
Hi,
Welcome to Healthcare Magic.
I amDr Ramadevi Wani. I will be answering your concerns today.
If you have regular 28 days menstrual cycle then you probably have conceived around 14th XXXXXXX
I hope this helps. If you have further queries, I will be happy to answer.

Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar

Follow up: Dr. Ramadevi Wani (14 minutes later)

but that's only 4 weeks ago how would I be nearly 7 weeks

Answered by Dr. Ramadevi Wani (11 minutes later)

Brief Answer:
6 weeks 5 days is from the date of your period.

Detailed Answer:
Hi
Welcome back.

Ultrasound measurements are done taking into account the day of your last menstrual period. That is how the machines are programmed. So when it says 6 weeks 5 days it is from the date of your period.
conception date is the time of ovulation. In a regular 28 day cycle it is 2 weeks after your period .
So from conception date you are 4 weeks 5 days pregnant and from last period 6 weeks 5 days.
I hope this clarifies things for you.
If you need any further clarifications, pl do write back

Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar

Follow up: Dr. Ramadevi Wani (1 hour later)

I have another doctors saying I conceived on the 1/2 measurements are 0.79 cm I took the morning after pill on the 15 XXXXXXX so I'm confused

Answered by Dr. Ramadevi Wani (34 minutes later)

Brief Answer:
The morning after pill did not work for you.

Detailed Answer:
Hi,
Welcome back.
I have very clearly mentioned how I calculated the date of conception.
The morning after pill did not work for you.

What is this measurement 0.79 cm?. It is not clear for me. Can you please write it clearly.
Best wishes,
Dr Rama

Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar

Follow up: Dr. Ramadevi Wani (2 minutes later)

I send the scan picture

Answered by Dr. Ramadevi Wani (12 minutes later)

Brief Answer:
The machinery variation can be upto +/- 5 days.

Detailed Answer:
Hi,
Welcome back.
I saw the report. Yes by ultrasound you are 6 weeks 5 days pregnant.

The machinery variation can be upto +/- 5 days. This is for your information.
Best wishes,
Dr Rama

Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar

Follow up: Dr. Ramadevi Wani (5 minutes later)

so did I still concieve on the 14 th XXXXXXX

Answered by Dr. Ramadevi Wani (4 minutes later)

Brief Answer:
Yes near 14 th XXXXXXX

Detailed Answer:
Hi
Yes around 14 XXXXXXX As I told you there can be machinery variation of measurement of upto 5 days.
When did you do pregnancy test?
That is another method of calculating.

Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar

Follow up: Dr. Ramadevi Wani (9 minutes later)

I did a test on 26 XXXXXXX

Answered by Dr. Ramadevi Wani (2 hours later)

Brief Answer:
Conception date near XXXXXXX 14

Detailed Answer:
Hi,
This also means that the conception date is near XXXXXXX 14.
Best wishes,
Dr Rama

Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar