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Paternity test - Online Doctor Chats

Date : 13-Jan-2012
User rating for this question
Very Good Posted in: Women's Health
Answered by

General & Family Physician
Practicing since : 2009
Answered : 630 Questions
User :   There is a girl I had sexual intercouse with that I was dating, shortly after we broke up she had intercourse with someone else. The last time we had sex was 7 May 2009. They gave her a due date of 10 March 2010. What are the chances this is my baby?
Doctor :   Hi
User :   hello
Doctor :  
The total period of pregnancy is for 9 months and 7 days.
Doctor :  
and the due date is calculated by means of various parameters.
User :   its just that things have worked out now and i am hoping its mine
User :   i heard a full term is 40 weeks am i mistaken then?
Doctor :  
It is the same when we calculate it in months.
Doctor :  
Based on the due date her last menstrual period must have been 3rd march 2009.
Doctor :  
So there are more possibilities that it may be yours.
Doctor :  
Provided there was no sexual intercourse with any other person during that time.
Doctor :   This is just a prediction.
Doctor :  
A parternity can only be confirmed after the birth of the child
Doctor :  
by means of DNA analysis.
User :   i see
Doctor :  
Have you followed?
User :   well she was with this other guy in from beginning june to mid june
User :   of 09
Doctor :   As I said it is difficult to predict paternity by means of the dates.
Doctor :  
Due dates are provided by calculating the last menstrual period.
User :   ok but why do you say it is more of a possibilty that it may be mine
Doctor :  
I can only comment on her last menstrual period that would have been around 3 march 09.
Doctor :  
I meant that a sexual intercourse before this day during the month of march, may have resulted in the pregnancy.
Doctor :  
And that the paternity can be confirmed by the test alone.
Doctor :  
Hope it is clear now.
User :   we had sex all of april and up to may 7
User :   if it was in march that would be 12 months though right doc ?
Doctor :  
I am sorry, there has been a miscalculation.
User :   she is due today
Doctor :  
Her last menstrual period must have been in the month of june.
Doctor :  
Around 3rd.
Doctor :  
So a sexual intercourse in the month of may may have resulted in pregnancy.
Doctor :  
And the rest of the details of the paternity test is the same.
Doctor :  
Have you followed?
User :   yes
User :   so let me clarify please...
Doctor :   I shall repeat it again.
User :   ok
Doctor :  
Based on her due date, most probably her last menstrual period must have been in the month of june or late may.
Doctor :  
A sexual intercourse during this period may have resulted in the pregnancy.
User :   but how could she have a menstrual period if i possibly got her pregnant in may
User :   beginning of may
Doctor :  
You need to get the DNA analysis to confirm the paternity.
Doctor :  
I had only mentioned about her last menstrual period based on the due dates and cannot comment more on that.
Doctor :   And yes a sexual intercourse after her last menstrual periods is the cause for the pregnancy.
Doctor :  
Have you followed?
Doctor :  
Are you there?

Doctor :   Hi
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