Can you use OPK's as HPT's? Am I preggers?

[JumpingBean]

Am not sure if I'm pregnant or not!
Here's my story...
I'm doing opk's and got +'s just over a couple of weeks ago now. Then AF arrived 2 days early and very light but only for 3 days - which is very short for me. Then on sunday, a week after the first AF, it showed up again but just for the day. I was tired and very moody that day and the day before also.
Today my boobs are a little sore, but I lifted a couple of bags of soil yesterday and thought it was just from the lifting. I've also had a bit of CM this week too.
I've just done an OPK now as I don't have any HPT's and it's come up a VERY fast and positive second line!
Can you use OPK's for HPT's??????
I'm trying to not get too excited, but am already! I'm not due to O for another 8 or 9 days.
HELP!!!! Anyone got any info?
Getting a HPT for the morning incase...

[giveitago]

'borrowed' from another website

Overall-- yes, it can be done. Ovulation predictor tests (known as OPK's because they are normally sold in a set of tests known as a "kit," thus the K) will show a positive result when a woman is pregnant, as well as when she's ovulating.
Specifically-- while it works most of the time, there are good reasons to avoid using an OPK as an HPT for diagnostic purposes. If you want to pee on any stick that will stand still after you know you're pregnant, just for fun, have at it. But I would not recommend using an OPK in place of an HPT overall.
Reasoning-- OPK's detect LH (luteinizing hormone) which is the hormone associated with ovulation. Pregnancy tests detect hCG, the hormone associated with pregnancy. LH and hCG are, at a molecular level, nearly identical. hCG has a beta subunit, meaning it has an extra little "doodad." To use a stupid but easy to understand example, LH and hCG are identical twins, except that hCG wears a funny hat.



An OPK tests only for the part of the molecule that LH and hCG have in common
So an OPK will turn positive when it detects either of ovulation or pregnancy hormone.

The reverse is not true, however, because an HPT tests for the part of the molecule that is unique to hCG

Therefore, a pregnancy test will turn positive only in the presence of hCG, whereas an OPK will turn positive in the presence of hCG or LH.


Now, it's important to note that OPK's work differently than HPT's. A pregnancy test will develop 2 lines only if hCG (pregnancy hormone) is detected. Thus, "a line is a line" when determining a positive HPT. OPK's work differently. An OPK has a "control" line and a "test" line, just like an HPT. Unlike an HPT, however, the mere presence of a "test" line does not mean the test is positive. The test line must be as dark as, or darker than, the control line to be a positive result (meaning that a surge was detected, rather than the ordinary amount of LH usually found in your urine every day.)
This means that there is already some ambiguity involved in reading an OPK's results. Sometimes the line is almost as dark as the control line, but perhaps not quite as dark. Sometimes only the edge turns dark, or the top half of the line is darker than the bottom.
Additionally, OPK's are not as sensitive as a lot of HPT's are. This means that, if pregnant, you are likely to get a positive HPT earlier than you would get a positive OPK.

[JumpingBean]

Thanks! I think I'm more confused now tho!!!:confused:

[giveitago]

Thanks! I think I'm more confused now tho!!!:confused:


An OPK would come up positive AFTER a hpt.

So if your HPT is neg ignore your OPK as a preg test. But consider the fact you may be O'ing earlier.

[hp-mum]

Hi Kell :wave:

Long time no speak!

I have heard of people using them as a HPT before. I soooooo hope you are UTD!

I used an OPK after getting a positive HPT and it came up neg, but it was before my AF was due.

I am excited for you! I will be checking in tomorrow to see how you go with the HPT!

:fingerscrossed::fingerscrossed::fingerscrossed::f ingerscrossed::fingerscrossed:

[JumpingBean]

okay, DH just dropped in with a HPT. Crystal Clear brand and I just did it and it's a ...





:bfp: I'm so excited! Off to ring the dr's now!!!!

[BaDaBing]

I think you are better to use a HPT than a OPK as it will give you a more confident answer.

[giveitago]

okay, DH just dropped in with a HPT. Crystal Clear brand and I just did it and it's a ...





:bfp: I'm so excited! Off to ring the dr's now!!!!


Congratulations :yelclap:

[Eloise&Charlie'sMum]

:smiliedance::smiliedance::smiliedance:

CONGRATULATIONS
WOOOOHOOOOO !!!!
:hugs::hugs::hugs:

[hp-mum]

:smiliedance::smiliedance::smiliedance::smiliedanc e::smiliedance::smiliedance:
WOOHOO!!!!!!!

Congratulations Kell!!! I am so happy for you!

Goodluck and I'm sending you lots of sticky vibes!!!

[EsSjAy]

Just came by this thead hun.....

A BIG 'HUGE' CONGRATULATIONS

:smiliedance:.....

How's hubby??

[JumpingBean]

Thanks girls. I'm on :cloud9:.
We'd been trying for a while and I didn't think it would happen!!! I'm so happy.
Hubby now is celebrating by taking the arvo off! :shame: He should be back at work, we'll need the money now we have another on the way!!!

[Eliza]

CONGRATULATIONS!
:yelclap: :D

[baylismum]

hey kell!
just wanted to say a big congrats!! i know how long you have waited for this, i am so excited for you!!!
All the best for a wonderful pregnancy!
xo

:smiliedance::yelclap:

[kittykatz]

Congratulations - you finally got that :bfp: you've been trying so hard for.

I'm so happy for you!! :smiliedance:

[*Kris*]

CONGRATULATIONS KELL!! All the best for the next 8+ months :yelclap:

[sueliz]

Yay!! Congrats Kell. I am so happy for you and your growing family!
How are you feeling?? (Apart from ecstatic!)

[IVFcrazylady]

WOOHOO!
:smiliedance:

How exciting for both you and your family!
:goodvibes: Your little girl is going to be a big sister:goodvibes:

:smiliedance:

[ringneck]

congratulations. you must be so excited good luck with your pregnancy hope its complication free

[trini246]

CoNgRaTuLaTiOnS! :yelclap:

[phineas]

Congrats Kell!!!!

October bub?

[Mummy to Mason]

Oh Kel congratulations!!!!! I haven't seen you around the testing thread for ages and was wondering how you were going.

YAY you are having a baby!!!! :yelclap::yelclap::yelclap:

[KatiesMum]

YAY KEL !!!!!

that is really great news.

so happy for you

:smiliedance: :smiliedance: :smiliedance: :smiliedance: :smiliedance: :smiliedance:

[springbride]

:smiliedance:CONGRATULATIONS KEL:yelclap:

Best wishes and may you and your precious bub stay safe and healthy :hugs: