Hey BeanyBub

Is that the right address? Go to Sharing, Home Page Setup and copy paste in the address underneath 'YOur charting home page web address'.

An ovum only needs 10 days to implant so it is certainly possible to get a bfp still If you count o day and 9dpos - u r aok. The stats try and fit everyone into the same slot and as u know, not all women have a regular 28 day cycle with o on cd14.
I think it is unlikely that your luteal phase (time from o to AF) changed, it is more likely the follicular phase (time from AF cd1 to o) which is messing u around. Stress can mess u around but should not stop o, just maybe extend AF for an extra day or shorten your follicular phase.

I would keep up the temping and maybe try opks as a cross-referencing tool. I note that u came off the pill in February, it is possible that your body is still adjusting but I would check out the theory that maybe u do have a shorter lp overall.