Help! Spotting after fingering

[unknownboy_]

Since my gf period is in 1 more day according to the app, She has been spotting for about 4-5 days. Its like dark brown at first then becoming more light on the following days with some brown clots. I am so scared that this is implantation, it does not look like spotting cause its not a drop or two, its like a flow. I did have manual sex with her where its only fingering on 8 August. We dont have PIV. Im just scared if it can caused her pr3g, we also do dry humping while shes not using any panties on. Through out all the time, Im wearing pants and boxer. I did touched my down there possible have some precum. I did washed my hand after that, and started finger her. Is there any chance of precum can be still alive?

Ive been crazy these days since the day she has the spotting. Most of the internet says its related to implntation. I dont know if its just the old blood from previous period or what. Yet she has the symtomp where she always have before period like her acnes, on off cramp, sweating.

Its just make me more scared about the spotting. Any advice?