How To Determine The Date Of Conception?

Posted on Sat, 13 Jun 2015

Medically reviewed by Ask A Doctor - 24x7 Medical Review Team

Sat, 13 Jun 2015 Answered on

Mon, 29 Jun 2015 Last reviewed on

Question : Hi my dr said I got pregnant on April 5th 2015. From my understanding your pregnant a lil time before that truly. Is that correct because you have to allow time for the sperm to travel correct? And what day did I have sex my due date is dec 28

Answered by Dr. Vivek Chail (24 minutes later)

Brief Answer:
Probable date of conception is between April 2 to April 10, 2015

Detailed Answer:
Hi XXXX,
Thanks for writing in to us.

I have read through your query in detail.
Please find my observations below.

1. Should your due date be 28 Dec 2015 then the date of conception is between April 2 to April 10, 2015.

2. Therefore April 5 is an approximation and your pregnancy has resulted from having sex on any day between April 2 to April 10, 2015.

3. Pregnancy happens about 24 to 48 hours after having sex to allow the sperm to travel in to the fallopian tube where it meets the egg to cause a pregnancy.

Hope this answers your question. Please feel free to correct any oversight in my interpretation of your problems and discuss them in detail as per your requirements.

Hope your query is answered.
Do write back if you have any doubts.

Regards,
Dr.Vivek

Above answer was peer-reviewed by : Dr. Neel Kudchadkar