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Prenatal Paternity Test

(45 Posts)
rgm1988 Tue 16-Feb-16 12:31:54

I need to have a prenatal paternity test. I have researched the tests that are available and am aware of amniocentesis and chorionic villus sampling as options. However this morning I read that it may be possible to have just blood tests done as there is DNA in the moters blood from week nine. Does anybody know about or have any personal experiences of this. Is it as reliable? How come it's less well known? Etc. Etc.

I live in London… would anyone have any recommendations of who I could speak to. I would be very grateful for any advice.

Threesquids Tue 16-Feb-16 12:34:57

There was a post about this last week.

Just to warn you OP, it didn't go well.

Heirhelp Tue 16-Feb-16 12:40:05

The previous thread did not go well because despite the parents being in a committed relationship and Mum having only had sex with her partner, her partner did not trust her. People were concerned about the lack of trust in the relationship and the fact that Mum was willing to put baby at risk to make the controlling partner happy.

Lj8893 Tue 16-Feb-16 12:41:59

There was good reasons why the previous thread didn't go well, this thread doesn't seem to have the same issue!

I don't know op, but there was someone who had previously had the blood test so hopefully they will be along to help out. Think it cost £1000.

KatyK1980 Tue 16-Feb-16 12:59:49

Hello! Non-invasive paternity testing looks at the fetal DNA present in your blood. Although this is obviously a much better option than invasive testing, people need to be aware that there have been a number of issues regarding the reliability of the results generated and so you may actually end up with a misleading result!

gamerchick Tue 16-Feb-16 13:03:52

OP why don't you just wait until the baby is born, then there is no risk whatsoever and you know 100% there will be an accurate result?

Why pay all that money just to have to do it again when the baby is born anyway?

rgm1988 Tue 16-Feb-16 13:11:19

Could you please elaborate on what the misleading result might be... would this be no result or actually giving the wrong result? Thanks

KatyK1980 Tue 16-Feb-16 13:39:10

It is my understanding that the result can actually be wrong. However this is an ever-evolving area and I think reliability is improving. Sorry, probably not very helpful, but the best method would definitely be to wait till baby is born x

PotteringAlong Tue 16-Feb-16 13:42:44

I think any reliable method of testing before the baby is born carries a risk to the baby. The only way to do it completely safely is to wait until they're born.

AnotherEmma Tue 16-Feb-16 13:44:29

Why do you want the test? Did you have unprotected sex with more than one man at the time of conception?

Are you the same person who posted before?

RudeElf Tue 16-Feb-16 13:46:55

Why do you think she wants the test? confused

AnotherEmma Tue 16-Feb-16 13:51:39


I don't know, do I? That's why I'm asking.

The poster who asked about this before hadn't actually slept with anyone else. She wanted the test to "reassure" her partner hmm

I would like to know why this poster feels that she "needs" a prenatal paternity test, not sure why they are ever necessary. But I would prefer to understand why the OP wants one before commenting.

1fedupmama Tue 16-Feb-16 13:56:53

Is there any particular reason u need the test right away? Or could it be left until baby is here? If it can wait then I would highly recommend doing so. I've had to do a DNA test on my son recently & it's only a swab to the cheek. I don't think I would like the sound of doing one while pregnant too many risks for my liking x

RudeElf Tue 16-Feb-16 14:02:26

I don't know, do I? That's why I'm asking.

Of course you know.

She wants it to confirm or rule out a person's paternity of her child.

AnotherEmma Tue 16-Feb-16 14:04:01

Why are you picking a fight with me, RudeElf?

I think it's better to ask the question rather than make an assumption. Obviously your assumption is the most logical explanation, but the previous thread has made me... not suspicious exactly... but aware of other possibilities.

Artioo2 Tue 16-Feb-16 14:11:32

The non-invasive blood test that's now available poses ZERO risk to the baby. It's done by taking a sample of the mother's blood, how could it possibly affect the baby, any more than the standard NHS blood samples a midwife routinely takes affect the baby?

OP, I would imagine that the blood test option is less widely covered online because it's based on quite a new technique (like the Harmony test) and is expensive.

RudeElf Tue 16-Feb-16 14:16:35

Because your post had nothing to do with the Op's question. She didnt ask for advice on why she needs a test and your post looked suspiciously like one trying to dig up the dirt on why she did need one as happens so many times on these threads and it isnt helpful or necessary.

AnotherEmma Tue 16-Feb-16 14:18:39

Asking the reason why she wants a test is not "digging up dirt", whatever the reason I would not call it "dirt"!!!

I don't think derailing the thread by picking a fight with me is helpful or necessary.

I asked the question, OP can ignore it if she wants to.

CityMole Tue 16-Feb-16 14:46:06

Amnio or CVS- accurate but carries a risk to the foetus that, in my view, is only justifiable in the rarest of cases. I think amnio is weeks 10-13 and CVS after that up to 20 weeks.

Non -Invasive Paternity testing carried no risk to the baby. the fetal DNA is separated from the mum's blood and tested against the father's blood. however these results can give you a false negative result so not vastly reliable which is a pain as it is also extremely expensive (over a grand, last time I looked- it may have come down I price as it becomes less of a rare offering.)

I would urge you if you can wait until after the birth to do so. There is currently no easy answer to pre-natal paternity testing.

makingmiracles Tue 16-Feb-16 14:54:14

I'm the one who had it before, and before I get jumped on it was in a surrogacy agreement situation, not an untrusting partner!

Yes it was £1000, my blood and the fathers blood were taken, the blood was then sent to a lab in America and we got the results after I think I was about 10-14 days.

The test Carrys no risk to the baby as it is done just using the blood samples from the mother and father.

CityMole Tue 16-Feb-16 15:05:43

just to clarify what I mean regarding justfication of amnio or cvs- I meant I find it hard to justify the risk of carrying out these tests for the purposes of paternity testing. I understand these proceduers are carried out to test for genetic conditions and I think that is a completely different matter. And the risk is low- it's just not a risk that think is worth running purely to establish paternity, when you can wait until it's born (or have the non invasive blood test).

PotteringAlong Tue 16-Feb-16 15:14:38

But the non-invasive test is not reliable. Which surely, in a situation where you're trying to determine paternity, makes it pointless in having it?

PotteringAlong Tue 16-Feb-16 15:15:21

Also, it assumes that the op can get a sample from the father / potential fathers.

makingmiracles Tue 16-Feb-16 15:22:45

Where is the evidence/your source that the non invasive test is unreliable?

In what way can it be unreliable when they are looking for the baby's dna in the fathers blood? Surely it's either present, or it's not?

Ours was reliable and accurate by the way and done in 2014.

Artioo2 Tue 16-Feb-16 15:30:06

Can anyone actually link to evidence that the modern non-invasive test is not reliable? It would appear from what I've read that this test is now much more reliable than it used to be - from what I can establish, if carried out by a reputable company the accuracy is well over 99%, which would be reliable enough for me.

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