is it possible

[Nicki91]

My best friend just had a little boy and her due date was august 12 2014. She had sex with The guy she thinks is the dad November 21st. But she said everywhere she checks online that has the conception date calculator it said her conception date is the about the 18th of November or before. Is he the dad or is the other guy

[AnnieBrooke]

She should get a DNA test done with the guy she slept with most often, OR if she can't bring herself to tell him she cheated, she should do one with the other guy.  Sorry, but I can't tell when all of this is secondhand what exactly the doctor said and what it was based on.

[Nicki91]

She had sex with her boyfriend the whole month of november and cheated on him with another guy on the 21st. She only slept with him once.She got her first ultrasound at 13 weeks and she said her last period was November 4th

[AnnieBrooke]

Hi, Nicki, it's not possible to answer without better data.  For example, it is really important to know how early her first ultrasound was?  And while there, did she ask for the 'conception' date, or did she ask "How far along am I?"  (Those questions will get different answers.) You said she had sex on the 21st, and then said "or was it the other guy?" without saying when she had sex with the other guy.  When did she have sex with whom?  Did she have sex with the guy on the 21st only, or other days too?  Where was her last period in relation to all of this, and are her periods regular?  If you don't have any way to give this information, she should just get the DNA test.

[Nicki91]

Yes she does but when she went to her first ultrasound appointment she asked for her conception date and they said the 18th

[AnnieBrooke]

How did she get her original estimated conception date, did she have an early ultrasound?  It's not possible to tell by the birth date only.  Does she plan to do a DNA test?