if she is 8.5 weeks on march 23rd then she conceived around feb 5th or so.

i'm sorry, but it doesn't sound like you're the father.

On March 23 she told me the fetus is 8.5 weeks old. If I understand well, that means she is on her 10.5 week from LMP (last menstrual cycle).

But, still I am afraid I am not the father. According to my calculations she conceived around January 22nd. Am I right?

if you haven't seen the girl since the last time you had sex with her then why would you want to be the father?

We live in different countries. Last December I went to visit her for Christmas. I was planning to marry her later this year and live together here.

oh, ok....it doesnt seem like you are the father, but the only way to say for sure is a dna test once the baby is born.


good luck

I do not know how to approach her and ask if she had any sexual partner after the time we were together in December. I do not want to hurt her, but it is important for me to know the truth.

How should I approach this?

Well, let me just say this. If she was with another man, would you still want to marry her? Because if that doesn't matter to you, the paternity of the baby shouldn't either. You can still be a father to this child if you really wanted to.

If it doesn't matter to you, maybe you shouldn't ask. Although I think you should know one way or another. I don't believe that relationships built on lies can last. But at the end of the day, donating the sperm does not make you a father. If you really want this baby to be yours, then paternity shouldn't stop you.

Good luck. I hope everything works out for you.

Thanks a lot ! I really appreciate your responses.

Thanks a lot ! I really appreciate your responses.

If you being the father or not would effect your future together then I would approach things tactfully. You may want to tell her that you were looking things up on the internet and that the dates don't match up. Ask her if she has had a dating sonogram done or if they are going off of her lmp. Tell her the reason that you are concerned is that she may be further along than what she believes. I wouldn't approach it in an accusing way, more of a concerned way (which is what you seem to be). See how she handles the situation. She may just be further along than she thinks.

i think you should be blunt about it and just ask her.

I have the information from the sonogram (from March 23):

CRL 20.4 mm
GA 8 weeks 6 days - 4 days

The last time we had sex was December 31, 2006.

Definetely numbers don't match up.

PLease, let me know what you think. When her due date should be, base on this sonogram?

dude,your not the father.

Based on this information, When do you think the baby was conceived?

ok,then well it looks like you are the father.On my calendar when I go back,if she was 8 wks 6 days,the conception date was the end of december.

The scan that shows 8 weeks 6 days (GA = LPM) was taken on March 23, 2007; then I think going back in the calendar conception will be at the end of January (not December). Do you agree?

no,end of december,the 28th is 8 weeks 6 days back.

ok, if she was 8 weeks 6 days pregnant on 3/23, she conceived around february 2nd and she'd be due around october 26th.

but if the baby's gestational age was 8w 6d, then she conceived around january 19th and she'd be due around october 12th.

either way, you are not the father. if she had conceived on december 31st (the last time you had sex), she'd be about 14 weeks along.

Ok, here's what i got:

Ultrasound was taken on .march 23rd, 8 weeks 6 days after her last menstrual period (lmp). This puts her last period on .january 20th, and the conception date was around .february 3rd.

Sorry, but i highly doubt you are the father.