So first day of week 5 Flower I see 3 leaves with the middle and adjacent petals showing yellowing around the edges and brown spots too. Fan leaves above and below look perfectly ok.
Cute pup. That’s not normal to start flowering under 18/6.
I’d let it go full 8 weeks tho assuming you’re saying you’re at day 50 of flower (beginning of week 8). Personally I’d go to day 56, maybe 60 max and pull her.