Can a blood test be wrong?

[Isadora]

After a Dr's visit last week it was determined that I've recently had a chemical pregnancy. I am still waiting for my period to start. So I've obviously put all chances of being pregnant behind me and havent been thinking about it. However this morning I have woken up with HUGE boobies (well huge for me anyway lol) and they are tingling like mad. I am also still very tired. My blood test however came back negative. I am just worried about the chances of an ectopic pregnancy, due to my history. Has anyone ever had a blood test that was wrong???? DH & I are of the understanding that blood tests are always accurate. Then there is the worry of it being an ectopic that isnt showing. SO OVER THIS!! Any info appreciated.

[Olive]

maybe your levels where low enough to indicate a neg. but it may have been too early! do you have any HPT??

[Isadora]

No, but I was thinking of buying a test. I just dont want to get my hopes up. Chances are its nothing. I would now be just over 6 wks surely it would have showed in a blood test. I'm just so confused!!!!!

[Claire_A]

My best friend had a blood test which came back negative, but after a couple of months of no AF, she took a HPT test - and it was positive! She was pg all along, which she was really shocked about as she thought blood tests were meant to be the most accurate. So I guess anythings possible! GL!

[Isadora]

Thats what I thought too. Oh well will try not to think about it and see where I am in another week or so.

[DaintreeDream]

If they did a pregnancy blood test only, they would have tested for a yes or no answer. Pregnancy is only detected if your levels are over 10 or 20miu.

If you get a HCG test done this will show your actual levels and be more accurate at showing if you are in fact pregnant.

If you do test to early, like a HPT a blood pregnancy test without checking HCG levels can come back incorrect.

Best of luck.

[Erin_25]

I'm not sure on all of the facts, but I had blood test done early on in my pg as I wasn't well & it came back negative but levels were higher than usual so she ordered another test. In the mean time I got a HPT (3 actually) & they all came back positive. That was at about 5wks.

[Trillian]

H, I don't know if you remember me saying this back in belly buddies, but with DS1 I was about 6 weeks and got a negative BT and had to have a second one because the first one wasn't conclusive enough to be a positive. Its possible that you conceived a little later than what you thought you did so your BT might not have been conclusive enough to be positive either. I never got a postive home test with him either.

[Isadora]

Thanks girls, I'm gonna give my period another few days and re test. This is so weird!!!

[AnyDream]

MM, I remembered what Trill said. I think if nothing over the next day or two, you should see your GP for a blood test, but make sure you ask for a quantitative one. That will give an actual number reading of the units of HCG in the blood. I wouldn't want to leave it too long just because of the ectopic risk, kwim?