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What percentage of successful pregnancies where hcg in the first trimester is not properly detected?

DOCTOR OF THE MONTH - Mar 2013
Mar 2013
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Question
What percentage of successful pregnancies do not detect proper hcg for the first months of pregnancy?
Posted Sun, 20 Oct 2013 in Pregnancy
 
 
Answered by Dr. Aarti Abraham 1 minute later
Hi XXXXXXX
B HCG is a most reliable indicator for detecting a pregnancy.
It is much more reliable than a urine pregnancy test and more than 99 % sensitive for detecting a pregnancy.
All the best.
Above answer was peer-reviewed by
 
Follow-up: What percentage of successful pregnancies where hcg in the first trimester is not properly detected? 4 minutes later
That is not what i asked
 
 
Answered by Dr. Aarti Abraham 4 minutes later
Brief Answer:
DETAILED BELOW

Detailed Answer:
In less than 1 % of cases, would it occur that the pregnancy is successful and going on for a few months, and the B HCG fails to properly show the appropriate raised value.
Please let me know if there was anything else that you meant to ask.
I would be glad to assist you.
Looking forward to hearing from you soon.
Take care.
Above answer was peer-reviewed by
 
Follow-up: What percentage of successful pregnancies where hcg in the first trimester is not properly detected? 2 hours later
If i had a chemical pregnancy where spotting / light bleeding started in 9/17/13 could i have fotten pregnant in 9/28 or 9/2?
 
 
Answered by Dr. Aarti Abraham 7 hours later
Brief Answer:
PLEASE PROVIDE FURTHER INFORMATION.

Detailed Answer:
Please let me know the dates of your last menstrual period in sequence.
Also, let me know the date when your B HCG test was taken, and the exact values , since you have mentioned a chemical pregnancy, there would have to be atleast two separate readings taken .
Also, any pelvic ultrasounds / HPT s if done.
Please provide me with this information, so I can tell you about the possible date of conception.
Above answer was peer-reviewed by
 
Follow-up: What percentage of successful pregnancies where hcg in the first trimester is not properly detected? 3 hours later
Unknown Lmp. 10 pos hpt: Chem preg 9/17: hcg(9)maroon bleed/ brown spotting 4 days/ 9/17 hcg(16)/ 9/19 levothyroxine 75 mg/ 9/25 prometrium100 mg x 2 / bloods come back for 9/23
hcg(0) unprotected sex on 9/28 could i be pregnant again???
 
 
Answered by Dr. Aarti Abraham 14 minutes later
Brief Answer:
DETAILED BELOW

Detailed Answer:
Hi,
You did have a chemical pregnancy indeed .
However, as the last B HCG on 23rd of September was 0, that pregnancy was over by then.
The bleeding / spotting was probably your period as a result of the earlier pregnancy ending.
You had unprotected sex on 28th of September.
The earliest you would know if you are pregnant again, as a result of the encounter on 28th september, is ATLEAST 2 weeks after this.
A repeat B HCG done after 2 weeks, or a urine pregnancy test done 4 weeks afterwards, would show if a pregnancy resulted or not.
Hope this clarifies things.
Take care.
Above answer was peer-reviewed by
 
Follow-up: What percentage of successful pregnancies where hcg in the first trimester is not properly detected? 2 hours later
Pic one july 30 : pic 2 oct 3: pic 3 oct 4 : pic 4 9/8 , 9/11, 9/15

Why am i getting bigger when i suppossedlu zeroes out hcgalready
 
 
Answered by Dr. Aarti Abraham 2 hours later
Brief Answer:
PELVIC + ABDOMINAL ULTRASOUND RECOMMENDED.

Detailed Answer:
Hi XXXXXXX
With a zero B HCG value, you are most definitely not pregnant.
In my practice so far, I have yet to come across a patient with a B HCG value of zero, who is pregnant, unless the laboratory is disastrously erroneously wrong.
And then you would be suing them for sure.
However, I can see in the pictures that you are definitely getting bigger.
As your LMP is uncertain XXXXXXX may I request you to undergo an ultrasound scan.
That would reveal any pregnancy ( which is impossible with zero B HCG values ) or any other reason for the distension of your abdomen.
Above answer was peer-reviewed by
 
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