Can FF be wrong about my ovulation date? - chart included

[nikki_]

Hi ladies!

So up until today, FF has said I ovulated on CD 18. But when I put in my temp today, it corrected to CD 25!! Huge jump!

With my temps it makes sense, but Sunday I got suspected implantation cramps and have had pregnancy symptoms (including multiple BFPs on frer!) ever since. What are the odds that FF is wrong by a whole week?

This is my first time using FF, so any input helps.

 

[Sorsha]

I've never been able to do temping effectively, so take this with a grain of salt, but I'm pretty sure body temperature goes up when you're pregnant. So it could just be detecting that and getting confused because you didn't have a super big spike earlier?