I don't know why I did it, but this morning, in a moment of insanity, I decided to do an HPT. I am 8 weeks today (my tickers are out for some reason) and just woke up with the idea I should see what was going on. I think it's partly because of the long wait between appointments and wanting to be sure I'm still pregnant (I've had 2 M/Cs).
Anyway, I used FMU and waited, and waited. The test took forever to come up with a test line and even when it did, it was REALLY REALLY faint!! Like the kind of faint I had with my first pregnancy when I had HCG levels of 15!
I didn't totally freak out, but I was definitely confused and a bit concerned. The reason I was more confused than worried is because I know my HCG levels were really high (56,000) only 2 weeks ago and they wouldn't have bottomed out so quickly even if things had gone wrong.
So I did a bit of research and discovered the Hook Effect.
Basically the theory is that once your HCG levels reach a certain point, the HPT will struggle to process them. It seemed a bit odd but I decided to follow the advice to test again with diluted pee for a different result.
So, and here's a bit of TMI, I haven't been flushing during the night with pee because I'm going at least 4 times and the constant flushing from the ensuite would keep DH awake. So I decided to dip the stick in the loo (I know!!!) and test from there.
Well lo and behold, a SUPER strong result within seconds that totally out coloured the control line.
The Hook Effect in full force. It is a very real thing.
Luckily with that little experiment I used up my last 2 HPTs and I am absolutely definitely stepping away from the sticks now. I am happy to see my strong bold line again and will now wait patiently for our next appt.
PgAL brain SUCKS and definitely makes you do some cray cray stuff.
Re: The Hook Effect Is Real!!!
Very interesting! I'd never heard of that. Thx for sharing
"A false negative pregnancy test means that the test tells the patient they are not pregnant when they really are. Why does this occur? There are four well known reasons pregnancy tests can give false negative results.
LFAF Summer 2016 Awards:
I think perhaps your interpretation is wrong, not my testing method.
I did pee in a cup the first time, with FMU. My pee was not diluted which is the point. It was fully undiluted and produced a faint line.
One way to verify that the Hook Effect is in play is to then dilute the pee (which it was in the loo after not flushing all night) and retest. This gave me a VERY strong clear line, even before the control line came up.
Im pretty clear on what is diluted pee, and what's not.
I also know I have high levels of HCG and have seen the baby with a strong heartbeat so I am not a first time tester trying to figure out if I am pregnant.
I agree PrimRoseMae, it is rare, but not at all unheard of. And it's definitely a bit crazy!!!
As mentioned above, my pee on the first test was FMU so definitely no where near as diluted as what was in the loo with a bowl full of water.
I wouldn't have believed it myself if I didn't see it with my own eyes and already know that I am definitely pregnant.
it doesn't seem people understand what you are saying. I totally followed you!
This. I didn't even know about this phenomenon. So weird! And I'm glad I haven't tested in weeks or it probably would have freaked me out so bad!
TTC since 2011
#1 BFP: July 2012 - ended in missed miscarriage at 19 weeks on Nov 1st.
#2 BFP: April 2013 - ended in chemical pregnancy at 4 1/2 weeks in April
#3 BFP: July 2013 - Still going strong!! Found out at 16 week ultrasound that we are having a BOY!!
FOLLOW MY PREGNANCY HERE:
http://www.countdownmypregnancy.com/profile/CrystalT88