how accurate are ultrasounds - Women's Health Message Board

wolflover7470 · 03-26-2004, 07:20 PM

My son's girlfriend is pregnant,she had an ultrasound done yesterday.They told her shes was almost 11 weeks along.the last time they slept together was dec.22.2003.Is it possible this might not be my grandchild?

Blastoff9600 · 03-26-2004, 07:29 PM

Well anything is possible...the U/S have been known to be off by a week at times. Also your son could have lied about the last time they were together. Then throw in sperm can live inside a woman for up to 7 days afterward and then throw in that implantation can take up to a week or more to occur. That adds about 2 weeks and that would put her in the ball park for it being your son's child. There are alot of factors to consider.
The only way to know for sure is to have a DNA test done when the child is born. Make sure you son doesnt sign anything until after he has done a DNA test.
If none of you can wait that long you can talk about getting an Amnio done and those can determine who the father is. But that will be up to the mother-to-be since there is risk involved with that.

wolflover7470 · 03-26-2004, 07:37 PM

Quote:

Originally Posted by Blastoff9600

Well anything is possible...the U/S have been known to be off by a week at times. Also your son could have lied about the last time they were together. Then throw in sperm can live inside a woman for up to 7 days afterward and then throw in that implantation can take up to a week or more to occur. That adds about 2 weeks and that would put her in the ball park for it being your son's child. There are alot of factors to consider.
The only way to know for sure is to have a DNA test done when the child is born. Make sure you son doesnt sign anything until after he has done a DNA test.
If none of you can wait that long you can talk about getting an Amnio done and those can determine who the father is. But that will be up to the mother-to-be since there is risk involved with that.

Thank you so much for replying,I wish that I could say it makes me feel better but it doesn't lol.I think we'll check into the Amnio.I would like to know nownot in october.Thanks again.

kellie2 · 03-26-2004, 08:21 PM

So let me get this straight....because the ultrasound doesn't pinpoint exactly the day you think it should, you automatically assume she slept with someone else? Hmmm. I think I would be pretty hurt if I were her. Ultrasounds are known not to be 100% accurate; my daughter's girlfriend had one and hers was off by almost 3 weeks. Have you actually voiced this concern to his girlfriend, or asked her right out if she's been with someone else? Because you really don't mention her at all in your post, which makes me wonder 'who' exactly is questioning this child - all three of you, or just you.

wolflover7470 · 03-26-2004, 08:54 PM

Quote:

Originally Posted by kellie2

So let me get this straight....because the ultrasound doesn't pinpoint EXACTLY the day YOU think it should, you automatically assume she slept with someone else? Hmmm. I think I would be pretty hurt if I were her. Ultrasounds are known not to be 100% accurate; my daughter's girlfriend had one and hers was off by almost 3 weeks. In any case, I'm going to assume that the girl's word isn't good enough....unless you haven't voiced this concern to either her or your son. If not, you may want to tread lightly with this one because if it turns out to indeed be your grandchild and you voiced your doubt to the mother at some point along the way, you may have to fight to have that child in your life later on, as the mistrust you conveyed to her would be mighty hard to forgive. And I think the one thing that everyone seems to be forgetting is - it's really nobody's business but hers and your son's.

kellie2,first off,this is my business since my son is only 16yrs old and his girlfriend who is 14yrs old,let me also add that there are 3 people to blame for this 14yr old girl being pregnant,#1 person to blame is the girlfriends mother,she left these 2 teenagers home alone,I know this cuz both kids saide the same thing.I realize this could have happened anywhere but it didnt it happened under the supervision of the girlfriends mother.#2 people to blame are my son and his girlfriend.They BOTH were educated on sex and what could happen if they made that choice.Her own mother wonders if my son is the only one,thats y I have douts to if it is my son's or not.I was also told that this girl slept with a guy a month later after my son,so who knows who she had been with anyone in between if anyone at all.Thx for ur reply anyway