Please read.. is there hope at this point?

So long story short...

I had a miscarriage (you can tell my looking at my chart), my temps were a bit wacky in the beginning. They leveled out though and I did in fact ovulate for sure between temping and using OPK’s. My question is I got a bfn this morning, but with my last pregnancy I got a bfp at 12 dpo. I was hoping that since I got a bfp then that I would have surely gotten a bfp by now if I was pregnant.

I noticed a triphasic shift too in my chart starting yesterday (hopefully it’s triphasic still tomorrow to confirm), but I’ve heard triphasic means pregnancy sometimes too!

Did any of you ladies have a bfn at 10 dpo and ended up being pregnant still?