Another Pregnancy Test ?

[lorihart]

Hi Everyone,
I don't normally come to this board very often but I thought this would be a great place to post my question.
For the last couple of years my period as been like clock work.I would either start my period the minute my two feet touch the floor(on the 28th day) in the morning or on the 27th night before I would go to bed.But in the last few years I have had times when my period would be late.So its not overly uncommon BUT for the last 2 years it would be.
I took a test on Thursday night (29th day) and it was negative.It is now day 32 and I still haven't started.My boobs are starting to get sore (which happens when I am going to start my period or pergnate for that matter)I also have a little bit of crapping off and on ,as if I might start.
The thing is I am rarely late,DH as low sperm count so its not that easy for us,we did try to have a baby this month,I don't think I exercised to much and drove it off this month, and how long should I wait before I take anohter test? When I was pregnate with my first I was sick instintly.This is different though b/c I am not 17 anymore (which would make any 17 year old throw up)
Anyway..as anyone every taken a test and it said neg but you were pregnate? And did you take another teat and how long after? Should I take it first thing in the morning even though it says you don't have to? I bought first response as well so I didn't buy a cheap brand.I just hate wasting money.Its great if you find out you are pregnate but if your not it seems like you wasted money.
Sorry so long, Thanks for you responses!
Lori

 

[wendymin72]

Lori,

There are false negatives but not false positives, so yes, even if the test was negative when you took it, you COULD still be pregnant. You could take a test every day if you wanted to. The tests detect the pregnancy hormone and each test is different as to how quickly it will detect it. I was only a few days late with my period when I took my 1st pg test and it came back positive. I was in shock so I took like 3 more tests over the next couple of weeks! lol But again, there is no such thing as a false positive...I guess I was just being paranoid. lol

It's really your call as to how soon you want to take another pg test though...Good Luck! I hope it ends up being positive!

Have a great work out!

~Wendy~
Due Date: 5/19/05

http://www.bullmarketer.com/modules/coppermine/albums/userpics/Sports/exercise/thumb_exercise15.gif

http://www.picturetrail.com/gallery/view?WENDYMIN

 

[autumn]

Hi Lori! HCG is a hormone produced by the placenta and is detected by HPT (Home Pregnancy Tests). Implantation must have taken place for this hormone to be detectable. This usually occurs 7-10 days post-conception (it can occur as late as 12 days according to some sources). HCG doubles every 36-48 hours until it peaks at 8-10 weeks then declines to a lower level the remainder of the pregnancy. At the time of the first menstrual period, hCG is usually about 100mIU/ml (peak levels at the end of the first trimester 100,000-200,000mIU/ml). Here is a link that shows serum hCG levels http://www.babymed.com/tools/pregnancy/hcg/
Let me stress that urine levels are usually lower than serum.


The cost of the pregnancy test isn't as important as the test's sensitivity. The more sensitive it is the lower the level of hCG it will detect, so the more sensitive the earlier it will detect pregnancy. When I was undergoing infertility treatments, I was told that the level the manufacturer claims the test detects (this is true for OPKs and HPT) is not always accurate. In fact, some tests did not detect "normal" levels. Here is a link re: HPT... it also provides a link to a Journal of the American Medical Association (JAMA) article on the subject:
http://www.fertilityplus.org/faq/hpt.html

Wendy is correct, you could be pregnant. The most common reason for a false negative... testing too early (you may have conceived in a longer cycle so you ovulated later; the day implantation occurs is another factor; "normal" hCG levels vary with each pregnancy) but it could also be a bad test (always check expiration dates). BTW, not to contradict, but there are false positives, which can be caused by certain meds, marijuana, LH, to name a few causes.

When to test again... that is really up to you... do you know when you ovulated? It would be easier to advise if you do know. Some may advise every 48 hours. HCG does double every 36-48 hours, so when doctors monitor serum hCG levels (quantitative measurements) it is done every 48 hours. HOWEVER, urine tests are qualitative... yes or no... hCG just has to reach the yes or no level and that does not necessarily mean waiting 36-48 hours.

I have rambled a bit here, I hope it helps. I hope you get the news you are wanting!

 

[wendymin72]

"BTW, not to contradict, but there are false positives, which can be caused by certain meds, marijuana, LH, to name a few causes."

Wow, Autumn, I had no idea that was possible. When I was being paranoid and taking pg tests every week I was being told flat out that there was no such thing as a false positive! Thanks for clearing that up! = )


Have a great work out!

~Wendy~
Due Date: 5/19/05

http://www.bullmarketer.com/modules/coppermine/albums/userpics/Sports/exercise/thumb_exercise15.gif

http://www.picturetrail.com/gallery/view?WENDYMIN

 

[autumn]

Ahhh, see you knew what you were doing! Yep, I've seen a few false positives with marijuana use and meds. A recent miscarriage can cause a false positive too.