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Query on pregnancy conception and who is father of the child - Online Doctor Chats

Date : 21-Feb-2012
User rating for this question
Very Good Posted in: Pregnancy
Answered by

General & Family Physician
Practicing since : 2009
Answered : 594 Questions
User :   Hi,
Doctor :   hi
Doctor :   Dr. XXXXXXXX here
Doctor :   how can i help you?
Doctor :   please proceed with your health query
User :   i have a ? re pregnancy conception
Doctor :   ok. go ahead with your query
User :   can you help...can i talk to an ob specialist?
User :   its complicated
User :   im an ortho surgeon
User :   it has to do with the likelihood that im the father of a womans pregnancy
Doctor :   I am a general practitioner, I can help you with my expertise, if needed I shall refer you to the specialist
User :   i have some dates and ultrasound data
User : goes
User :   the woman was on bcp
User :   he last period was feb 19 and was short
User :   she had sex with guy one on feb 20
Doctor :   ok. were her periods regular? since when she was on BCP?
User :   she had sex with guy two on march 6
User :   she is not sure re periods strange as that may sound
User :   she found out she was pregnant aobut end of march
Doctor :   let me get it right, her last periods started on 19th FEb, and she has intercourse with 1 person on 20th Feb, then again on March 6th with 2 people
User :   she had ultrasound at good clinc on APRIL 19 and that showed fetus to be 7 weeks 3 days
Doctor :   now, let me explain...assuming she was having regular periods before of about 30 days cycle, and she was irregular on BCP
User :   no....hold on..
Doctor :   then the intercourse on 20th Feb will not result in pregnancy
User :   she had sex with Guy #1 on Feb. 20
User :   She had sex with Guy #2 on March 6
User :   By the size of ultrasound test...her conception was Feb 25
Doctor :   yes, that I understood
Doctor :   yes, that is also correct, that her date of conception as per ultarsound will be around Feb 23-26th
Doctor :   when did you have intercourse with her? do you remember the date?
Doctor :   If her period started on Feb 19th, then her ovulation would be around Feb 26-FebMarch 3rd assuming that she has had a 30 day menstrual cycle
User :   So do you have any thoughts as to whether Guy 1 or Guy 2 is more likely to be the father...i know that can only be by DNA testing, but it is my understanding that Ultrasounds early are relatively you have thoughts?
Doctor :   i will explain..have you followed what I have said uptil now?
User :   yes....totally
User :   except that it seems that her cycle is probably not so regular
Doctor :   then as per my calculations, the conception has occured somewhere around March 6th
Doctor :   as her ovulation dates are between Feb 26th to March 3rd
Doctor :   and the fact that the egg can be alive and viable upto 72 hours
Doctor :   the probability of Guy#2 being the father is more likely
Doctor :   are you there?
Doctor :   have you followed what I said?
User :   i understand re ovulation dates....but how would you then explain the ultrasound results which say conception is on feb 25.....from that standpoint, does it not seem that she had sex feb 20...conception is the 22nd or so....and the ultrasound is a few days off?
Doctor :   please get back to me in case of having doubts
Doctor :   see as per the ultrasound reports on April 19th, she is 7 weeks 3 days pregnant
Doctor :   and the early scans dates can vary with +/- 5 days upto 10 weeks of gestation.
Doctor :   so taking that into consideration
Doctor :   the probable time of her getting conceived would be around the time i have suggested.
Doctor :   and this can be confirmed by taking another scan 1 month later which will show the dats
Doctor :   also since her cycles regularity is not clear, and she was on BCP before
Doctor :   the chances of her having late ovulation are high
User :   but if ultrasound shows feb 25...then march 7 or 8 would be 10 or 11 days seems that is alot off for an early ultrasound???
Doctor :   however the exact result can be stated only after DNA test
User :   (im just aksing questions)
User :   is it possible to talk to an OB for a few minutes?
Doctor :   the ovulation occurs say on Day1, then the time the conceptus gets implanted in uterus is 7-10 days later
Doctor :   usually being 7 days later
Doctor :   You can speak to OB specialist from our panel, they come under the specialist opinion service and are available over phone or e-mail, not live chat.
User :   i understand just seems that if intercourse occured on March 6....and conception was say March 7 or 8th...then
User :   ok...will do
User :   thanks for your help
Doctor :   WWW.WWWW.WW Doctor :   you can visit this link to talk/dicuss with the Ob specialist
Doctor :   *discuss
Doctor :   is there anything else i can help you with?
Doctor :   are you there?
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Doctor :   hi
Doctor :   are you there?
Doctor :   please proceed with your query
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