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How To Determine The Date Of Conception?
Question: i am due on septmeber 27th did i concive in december or in jan? does the concive actually mean that was the day i got pregnant as in the day i had sex or do i have this wrong??
Brief Answer:
Early January
Detailed Answer:
Hi dear,
I have gone through your question and understand the concerns.
By the expected delivery date of 27 th September, your last menstrual period was on 20 th December, 2016.
The conception usually occurs on 14 -15 th day of the cycle in a 28 days cycle.
Therefore, the pregnancy likely established in January by an act in Early January.
Hope you found the answer helpful.
Regards
Dr Deepti Verma
OBGYN
Early January
Detailed Answer:
Hi dear,
I have gone through your question and understand the concerns.
By the expected delivery date of 27 th September, your last menstrual period was on 20 th December, 2016.
The conception usually occurs on 14 -15 th day of the cycle in a 28 days cycle.
Therefore, the pregnancy likely established in January by an act in Early January.
Hope you found the answer helpful.
Regards
Dr Deepti Verma
OBGYN
Above answer was peer-reviewed by :
Dr. Prasad
can you explain to me how it will be the first on XXXXXXX when i got pregnant? i thought counted 40 weeks up and back i get date being december 28th the first week of my pregnancy. did i count up right. i ha a period but it was irregular only last about 3 days in december i had two periods only last about 3 days so im not sure of the actually date of my last period.. .. if i got pregnant in XXXXXXX at the beginning i got a test done XXXXXXX 12 th and XXXXXXX 18th that said i wasnt pregnant so how could this be possible. i did a urine test and a blood test. im asking because i had sex with my ex bf on december 28th and i had a new partner at XXXXXXX 3rd and XXXXXXX 10th so im trying figure out who is the baby dad..
Brief Answer:
Detailed explanation below
Detailed Answer:
Hi dear,
40 weeks of gestation is counted from the first day of the last menstrual period.
So, by that calculation, the first day of the last menstrual period was 20th December, 2016.
Since the pregnancy usually occurs between 4-5 days prior to ovulation to upto 1 day after ovulation, and the ovulation usually occurs on day 14 ,the pregnancy is likely to have occurred in first week of January.
The ovulation would have occurred around 2-3 rd January, the conception, the pregnancy would have occurred due to the intercourse on 2-3 rd January.
The urine pregnancy test comes positive 14 days after fertilization, and an earlier test can come negative, as in your case.
Hope you found the answer helpful.
Regards
Dr Deepti Verma
OBGYN
Detailed explanation below
Detailed Answer:
Hi dear,
40 weeks of gestation is counted from the first day of the last menstrual period.
So, by that calculation, the first day of the last menstrual period was 20th December, 2016.
Since the pregnancy usually occurs between 4-5 days prior to ovulation to upto 1 day after ovulation, and the ovulation usually occurs on day 14 ,the pregnancy is likely to have occurred in first week of January.
The ovulation would have occurred around 2-3 rd January, the conception, the pregnancy would have occurred due to the intercourse on 2-3 rd January.
The urine pregnancy test comes positive 14 days after fertilization, and an earlier test can come negative, as in your case.
Hope you found the answer helpful.
Regards
Dr Deepti Verma
OBGYN
Above answer was peer-reviewed by :
Dr. Kampana
Answered by
Dr. Deepti Verma
OBGYN, Maternal and Fetal Medicine
Practicing since :2009
Answered : 5064 Questions
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