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Old Feb 6th, 2008, 15:06 PM   11
NeyNey
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Never heard of them, but it's definitely not impossible! Best of luck honey



 
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Old Feb 6th, 2008, 15:26 PM   12
sandy
 
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I thought that the hcg (pregnancy hormone) gets released in to your blood stream when implantation occurs and the hcg comes from the placenta which starts to form same time as implantation? dont know what to think now



 
Old Feb 6th, 2008, 15:33 PM   13
anita665
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Originally Posted by Phexia View Post
I don't think it's such a good idea to use those, I wouldn't wanna get my hopes up if the implantation would then fail and AF would arrive.
I agree with that. So many pregnancies fail because implantation doesn't happen or happen quite right and you'd just dismiss it as AF. It would only cause more disapointment if you knew an egg had been fertilized.

Quote:
Originally Posted by Sandy
I thought that the hcg (pregnancy hormone) gets released in to your blood stream when implantation occurs and the hcg comes from the placenta which starts to form same time as implantation? dont know what to think now
The placenta does make it and so does the yolk sack which appears before the placenta & releases most of the hormone until the placenta is big enough to take over the job.



 
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Old Feb 6th, 2008, 15:38 PM   14
Samantha675
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I know that years ago when I went to the ER with a kidney stone they used a pregnancy test that I was charged $75 for, this was 10 years ago. Since I had to have a dye test to x-ray my kidneys to look for the stones, I can see why they would need a test like this.



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Old Oct 19th, 2011, 17:10 PM   15
tryingforbub
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Hi, i want to know, if your bub hasn't implanted yet, and you're past your due date for your period, what tells your body to wait for the embryo to implant?

The embryo must produce hcg and it must be absorbed into your reproductive system. Even if its miniscule, our bodies are so sensitive to hormone changes it must be enough to signal the corpus luteum to continue to produce enough progesterone to stop your period. Its the only thing that makes sense!

I was 3 days late, I took a positive preg test 2 minutes before i started my period (i thought it was my period) and the bleeding stopped within 24 hours. The positive test must have occurred because there was hcg present in the menstrual blood, and there must have bn a little blood in my urine. Its the only explanation i can come up with.

I tested again 3 days later and the test was negative, but still no period. 1 an half days of bleeding is not long enough for a period for me. So assuming implantation bleed, i have to wait a week for hcg to be present in urine to get accurate test result.

Holding my breath!!

One of those super sensitive tests would be a heaven sent right about now! lol



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Old Oct 19th, 2011, 17:33 PM   16
CanadianMaple
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I really didn't think you could even see an egg at all, or anything before 5 weeks into the pregnancy. I'm not sure if I believe it.



 
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Old Oct 19th, 2011, 17:37 PM   17
LizziesMama
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No, I don't believe it. First of all, a lab doesn't just drop a bit of urine or blood on a stick like we do and look for two lines or a smiley face. A quantitative HCG test of the blood can detect an HCG level of 1 in the blood, which is a normal level for a non-pregnant woman. So to say that there is somehow something more sensitive than a beta makes no sense to me whatsoever.

The only way I could even wrap my mind around these supposed tests is if they somehow took the blood sample directly from the uterus. That would be in line with some of the theories on this thread that it's a low level, or localized hormone. But really, even that doesn't make sense to me.

I think maybe your friend doesn't know the difference between conception and implantation. If she said they could detect HCG within 1-3 days of implanatation, in a lab, with blood, I would believe that. But even people with plentiful financial resources undergoing expensive IVF/infertility treatments aren't being offered this supposed test. And I'm pretty sure to someone spending $10,000 on IVF, a $100 pregnancy test would be an automatic.

Besides, even with a fertilized egg, you are not considered pregnant. That would be like saying everyone who undergoes IVF and has an embryo put back is pregnant. And in many cases, IVF never results in a pregnancy.

So no, I don't believe it. And even if it was true, which it's not, it would be pointless information, since a pregnancy does not occur until implantation. It would be worthless information, even if it was attainable.

I believe your friend might have given you some ultra sensitive test strips, but detecting a fertilized, yet to implant egg, no.

I also agree that if $700 worth of tests had gone missing, someone would be looking for them.



 
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Old Oct 19th, 2011, 18:07 PM   18
smokey
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Tests can pick up a pregnancy before implantation thats why you get chemical pregnancies (the egg has fertilised but doesnt implant)
Some people produce hcg extremly early and alot of it thats why I got my bfp at 7dpo, there was a faint one at 5dpo but I refused to believe it at the time.
I also got a chemical bfp at 4dpo, 5dpo and 6dpo a few months beforhand.
Others produce it at a slower rate hence why most tests wont pick it up till later.

Personaly I wouldnt use them as the heartache of it isnt worth the grief, nowing you where so close yet so far with a fertalised egg that failed to implant.
Saying that though im an impatiant nosey poas addict so I would probably crack and use it



 
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Old Oct 19th, 2011, 21:05 PM   19
LizziesMama
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FYI -

According to the American Pregnancy Association - Chemical pregnancies may account for 50-75% of all miscarriages. This occurs when a pregnancy is lost shortly after implantation, resulting in bleeding that occurs around the time of her expected period.

Also -

An over the counter HPT (as opposed to this supposed test in labs) CANNOT detect HCG before implantation.

According to www.peeonastick.com - When an egg is fertilized, it takes about 6 to 12 days to implant in the uterus, and then it begins to secrete hCG. It takes another day or two for enough hCG to build up and make its way into your pee. So, generally speaking, the earliest you can expect a positive HPT is 8 days past ovulation ("DPO") and the latest would be about 16 DPO. It is possible to get a positive test earlier or later, but not as common.



 
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Old Oct 20th, 2011, 08:55 AM   20
smokey
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Quote:
Originally Posted by LizziesMama View Post
FYI -

According to the American Pregnancy Association - Chemical pregnancies may account for 50-75% of all miscarriages. This occurs when a pregnancy is lost shortly after implantation, resulting in bleeding that occurs around the time of her expected period.

Also -

An over the counter HPT (as opposed to this supposed test in labs) CANNOT detect HCG before implantation.

According to www.peeonastick.com - When an egg is fertilized, it takes about 6 to 12 days to implant in the uterus, and then it begins to secrete hCG. It takes another day or two for enough hCG to build up and make its way into your pee. So, generally speaking, the earliest you can expect a positive HPT is 8 days past ovulation ("DPO") and the latest would be about 16 DPO. It is possible to get a positive test earlier or later, but not as common.
FYI
A chemical pregnancy occurs when a fertilized egg does not implant into the uterine wall. If a pregnancy test is taken just at the right time it will be positive, however, when a repeat test is taken several days later it will be negative.
Chemical pregnancies also more recently covers extremly early misscariages ie within a day or two of implantation.
So chemical pregnancies covers both, anything that can only be picked up by chemical testing ie hormone strips and blood tests but cant yet be detected by ultra sound (it then becomes a clinical pregnancy)
http://www.ourmiscarriage.com/chemical_pregnancy.html

http://www.womens-health.co.uk/chemical.html

http://miscarriage.about.com/od/misc...emicalpreg.htm

http://www.chemicalpregnancy.org/

HCG is produced on fertalisation but is increased massivly once implantation happens hence why most tests cant pick it up till a few days after implantation but its possible to pick it up before implantation.
At the time of my chemical and my following pregnancy I was undergoing strict observations so I knew the time of ov, the time of conception so I knew how many dpo I was when I had my chemical and my following pregnancy



 
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