View Full Version : False negative on day 10 past expected period date ?
yoanja
Feb 28, 2007, 12:45 PM
Hi, I was wondering if anyone could help me.
I'm 31yrs and my husband and I are trying to have a baby.
I am 10days overdue on my period and have taken 3 home pregnancy tests but all have turned up negative. However, on 2 of them after a few hours, they've showed a faint line where the positive should be.
Could it be that the hcg level is very low ?
When is the latest a home pregnancy test should show up positive ?
Squiffy
Feb 28, 2007, 12:51 PM
A pregnancy test can only be read for around 10 minutes after being taken. After this a false positive line may show up, it is called an evaporation line, and is not a positive.
Littleport7
Feb 28, 2007, 12:53 PM
They usually say that after 10 minutes, tests are not valid... but who knows?
buggage
Feb 28, 2007, 06:34 PM
Each test will tell you in the instructions a waiting limit, and how long after not to trust the reading. As above posted, usually its 10 minutes. But each test varies
ranna
Feb 28, 2007, 08:32 PM
hi, i was wondering if anyone could help me.
i'm 31yrs and my husband and i are trying to have a baby.
i am 10days overdue on my period and have taken 3 home pregnancy tests but all have turned up negative. however, on 2 of them after a few hours, they've showed a faint line where the positive should be.
could it be that the hcg level is very low ?
when is the latest a home preg test should show up positive ?
I'm in the same boat. But lots of people told me its to early to detect in most cases.. you don't read a HPT after 10 minutes.. you need a blood test
ghost56
Mar 3, 2007, 07:19 AM
A pregnancy test is invalid if read after the specified time, as the chemicals start to dry out, giving a false result. Ask your doctor to take a prenancy blood test. Good luck. Here is some ******baby dust****** for luck, hope it works.
yoanja
Mar 4, 2007, 07:47 AM
Thank you for your replies and the well wishes
ghost56
Mar 4, 2007, 08:50 AM
I will keep everything crossed for you. Good luck.