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How To Determine The Expected Date Of Delivery Using Last Menstrual Period?

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Posted on Mon, 6 Oct 2014
Question: I am currently 37 weeks and 4 days pregnant. my last mentral period was december 16 2013 and my expected due date is September 28 2014. I was wondering if you can tell me when I did I conceived my baby
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Answered by Dr. Sameer Kumar (19 minutes later)
Brief Answer:
your conception date as explained

Detailed Answer:
hello, thanks for contacting healthcare magic

if your LMP was 16/12/2013 then as per Naegle's formula your EDD would be 23/ sept /2014.

then according to naegle's formula you should be 38 weeks and 4 days today. this is your true gestational age for all medical purposes.

if 37 weeks and 4 days is your ultrasonological age then your ultrasound based EDD is should be 30 sept 2014.

considering the ultrasonological age as a parameter for reliable dates is not right as there is lot of discrepancy and cannot be encorporated truly for babies who are growth retarded.
with above background , considering your ovulation occurred on 30-31st dec, you are like to conceive by 1st -2nd of XXXXXXX 2014.

thanks,
regards,
Dr.Sameer Kumar

in case of further queries you may contact me at:-
http://doctor.healthcaremagic.com/doctors/dr-sameer-kumar/68814
Above answer was peer-reviewed by : Dr. Prasad
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Answered by
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Dr. Sameer Kumar

OB and GYN Specialist

Practicing since :2002

Answered : 1780 Questions

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How To Determine The Expected Date Of Delivery Using Last Menstrual Period?

Brief Answer: your conception date as explained Detailed Answer: hello, thanks for contacting healthcare magic if your LMP was 16/12/2013 then as per Naegle's formula your EDD would be 23/ sept /2014. then according to naegle's formula you should be 38 weeks and 4 days today. this is your true gestational age for all medical purposes. if 37 weeks and 4 days is your ultrasonological age then your ultrasound based EDD is should be 30 sept 2014. considering the ultrasonological age as a parameter for reliable dates is not right as there is lot of discrepancy and cannot be encorporated truly for babies who are growth retarded. with above background , considering your ovulation occurred on 30-31st dec, you are like to conceive by 1st -2nd of XXXXXXX 2014. thanks, regards, Dr.Sameer Kumar in case of further queries you may contact me at:- http://doctor.healthcaremagic.com/doctors/dr-sameer-kumar/68814