blood test - which is best CD 2 3 or 4?

cazd · Sep 22nd, 2009, 04:34 AM

Hi girls, I've got to go in for my CD-specific blood tests but I wondered if you had any advice on which day is the best?

I can go any time - does it matter at all which day I choose - or would you recommend one over day over the others?

Thanks!

Crypto1976 · Sep 22nd, 2009, 04:59 AM

It depends what they are testing I think FSH is cd3 and progesterone is cd21 ( although its really 7dpo).

Is that what you mean?

brooklyn1 · Sep 22nd, 2009, 07:32 AM

Hi Caz,
My doctor does the test on cd2 (for fsh and estradiol, right?), but I've heard of others doing it cd3. I happened to be going for my first appointment to the FS on cd4 and they took my blood but said that the levels could be falsely elevated because it's a little later. In the end they were the same as when I did it a month later on cd2 so I don't think it matters a whole lot, but I think cd2 or 3 would be safest. Hope that helps!

cazd · Sep 22nd, 2009, 22:36 PM

thanks girls... I'm on CD2 tomorrow so i'll go then - cheers xxxxx

Sep 22nd, 2009, 04:34 AM	#1
cazd Trying to conceive (TTC) BnB Addict Join Date: Aug 2008 Location: Kent, UK Posts: 7,839	blood test - which is best CD 2 3 or 4? Hi girls, I've got to go in for my CD-specific blood tests but I wondered if you had any advice on which day is the best? I can go any time - does it matter at all which day I choose - or would you recommend one over day over the others? Thanks!

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Sep 22nd, 2009, 04:59 AM	#2
Crypto1976 Pregnant (Expecting) Inactive Join Date: Jul 2009 Location: Scotland Posts: 2,820	It depends what they are testing I think FSH is cd3 and progesterone is cd21 ( although its really 7dpo). Is that what you mean?

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Sep 22nd, 2009, 07:32 AM	#3
brooklyn1 Mum (Mom) Chat Happy BnB Member Join Date: May 2009 Location: Brooklyn, NY Posts: 1,185	Hi Caz, My doctor does the test on cd2 (for fsh and estradiol, right?), but I've heard of others doing it cd3. I happened to be going for my first appointment to the FS on cd4 and they took my blood but said that the levels could be falsely elevated because it's a little later. In the end they were the same as when I did it a month later on cd2 so I don't think it matters a whole lot, but I think cd2 or 3 would be safest. Hope that helps!

Status: Offline

Sep 22nd, 2009, 22:36 PM	#4
cazd Trying to conceive (TTC) BnB Addict Join Date: Aug 2008 Location: Kent, UK Posts: 7,839	thanks girls... I'm on CD2 tomorrow so i'll go then - cheers xxxxx

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