changes in LP??

Normally I have a 10 day LP.
Today is 12dpo... still have higher temps, no AF, but tested and got a BFN.
Is it normal for your LP to fluctuate??? And if it is, how much is normal?

Re: changes in LP??

From what I have read it should not change by more than a day...

I also have a 10day LP (which I think is generally considered on the short side.

I have been trying to locate info on when to test, since implantation still will occur anywhere from 6-10 days after ovulation. And then it takes a few days to get a + result.

So I would think that we would have to test AFTER AF is due to get a clear +....but I'm just guessing because I couldnt get any info on it!