Hi Ghost
Sorry to bother you but just hoping you may be able to answer my question.
Im 7dp a 5dt and have taken 2 hpt, one normal, one digital, and both have come back positive, this isnt my first attempt at ivf, and i have had a chemical pregnancy before.
Do you think there is anyway there tests can be wrong?
And do you knoe roughly how much hcg you have to have before the hpt picks it up?
I know the hcg was out of my system before transfer cos i tested myself on the morning of my tranfer and it was negative.
Hope u had a nice holiday(vacation)
Thanks for your time
Laurie
A question for Ghost.
If you are pregnant, and it sure sounds like you are, then your embryos should have implanted about 5 days ago. Your serum hCG levels on day 7 after blast (day 5) transfer can exceed 100 mIU/mL. I don't recall the maximum I've seen, but I'd guess it was in the 200 range. Such levels are probably detectable with some HPTs, although other posters should be aware that levels are not always that high and false negatives with HPTs are very common this early in a pregnancy.
The residual hCG from your trigger (assuming you had an hCG trigger) would be close to zero. Almost certainly less than 1 mIU/mL. Almost no chance of a false positive from that.
You are probably taking some hormone supplements. Some here have wondered if their estradiol or progesterone supplements might cause a false positive. hCG is a protein with a molecular weight around 30,000. Estradiol and progesterone are steroids with molecular weights around 300. Not similar at all. No chance of a false positive from that.
hCG is very similar to other hormones in your body, including FSH, LH, and TSH. These molecules all share an alpha sub-unit, and differ in their beta sub-unit. Therefore, pregnancy tests look specifically for the beta subunit of hCG. (This is why you will see posters refer to their "betas".) The beta subunit of hCG is unique and should not be confused with anything else in these tests.
To make the long story short: Congratulations!
The residual hCG from your trigger (assuming you had an hCG trigger) would be close to zero. Almost certainly less than 1 mIU/mL. Almost no chance of a false positive from that.
You are probably taking some hormone supplements. Some here have wondered if their estradiol or progesterone supplements might cause a false positive. hCG is a protein with a molecular weight around 30,000. Estradiol and progesterone are steroids with molecular weights around 300. Not similar at all. No chance of a false positive from that.
hCG is very similar to other hormones in your body, including FSH, LH, and TSH. These molecules all share an alpha sub-unit, and differ in their beta sub-unit. Therefore, pregnancy tests look specifically for the beta subunit of hCG. (This is why you will see posters refer to their "betas".) The beta subunit of hCG is unique and should not be confused with anything else in these tests.
To make the long story short: Congratulations!
Thanx
Ghost
Thank you very much for you reply, i feel alot better now, and can look forward to my long anticipated blood test for the formal confirmation.
I dont think you realise how many minds you put to rest on this wesite.
Again, thankyou for you time.
shep181
The first test i did wasnt a digital, it a normal one where the cross appears(clear blue) and the line was so faint, hence i went and got a digital one,
Good luck, let me know how u go.
Laurie xx
Thank you very much for you reply, i feel alot better now, and can look forward to my long anticipated blood test for the formal confirmation.
I dont think you realise how many minds you put to rest on this wesite.
Again, thankyou for you time.
shep181
The first test i did wasnt a digital, it a normal one where the cross appears(clear blue) and the line was so faint, hence i went and got a digital one,
Good luck, let me know how u go.
Laurie xx