Just in case - accuracy of CD2 or CD4 b/w

jlcrane78 · April 2009

Tentative CD3 falls on a Friday, and my doctor does not draw blood on weekends. If my cycle deviates, how much accuracy do I lose by doing the draw on CD2 or CD4? Is it worth it to wait until the following cycle after all, or are CD2 and CD4 draws pretty accurate?

ladychicago · April 2009

my doctor will do it usually CD 3-5, with no worries about what difference it will make. i've also heard of women doing CD2. so i think you're fine!

PeachyKate · April 2009

You will be fine either way! ?My new clinic is a day 2 pusher, although they said day 3 was fine also.

Ireland05 · April 2009

My RE does it anywhere from CD2-4, so you should be fine.

albjag · April 2009

Mine was done on CD4 since CD3 was a sunday. ?You should be fine

EastCoastGirl* · April 2009

I had b/w initially done on CD4 due to some bad information I got and my RE actually requested that I get it redone the next cycle on CD3 and used those results over the first test. He also said that CD2 is preferable to CD4. However, it seems from the other replies here that he is in the minority with this stance.

hillaree · April 2009

Hi jlcrane! I'm in a very similar situation so I'm glad you asked this question. I *think* I can get b/w on Saturday (which, if I get AF tomorrow as expected will be c/d). But you know how AF is...and I want my b/w to be as accurate as possible! Hopefully AF cooperates for both of us and we can get our cd 3 b/w without worry. GL!

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