I cant see anything on thise pics.. but that may be because they're so blurry. have you got FF set to detect OV by opk/monitor? If so then it just puts your OV day in after a +ve opk even if nothing else points to OV. Id say IF you have even OV yet it could be cd52.. change your FF detection to advanced if its not already and then it will give you your O day by looking at all the signs not just opks!
Saying all that, FF can miss O completely sometimes, It didn't put it on my chart last month and I must have O'd coz I had another early loss! And if you are 7dpo at the mo, it could be a very very faint bfp you've got.. I'vev heard of a few girls getting lines that early. Good luck hun xx