:hugs: Bella, it is tortuous waiting isn't it? It really is up to when implantation occurs the timing of a BFP. It takes about 36 hours after implantation for hcg to be detected in blood and approx 12 hours after that for it to be detected in urine, by very sensitive tests...

Symptoms in the Luteal Phase are most often caused by the higher levels of progesterone. I know some women report that they have cramps around implantation - I personally have never experienced that.

This is my 9th pregnancy. This pregnancy I got a second line on opk on cd8 and a bfp (albeit feint) on cd9 which darkened the next day and was an in your face positive on cd11. With my third child I didn't get a bfp until the day after my period was due.
For me most of my pregnancies have been detected by cd12.

I have read people on Belly Belly say that the earlier the positive the stickier the pregnancy and this is just not so. When you get a positive has no relevance to the sustainability of the pregnancy. It does perhaps indicate when implantation was but then to pinpoint ovulation is tricky too! If you use opk's you can be fairly safe in the assumption that you will ovulate a day after the positive, however it could be later than that so you may think you are further along in days past ovulation iykwim???

I hope that this is your month for a BFP I have everything crossed for you!