Warning TMI picture. I'm really confused and freaking out a little

so today is my last day of my ovulation window, and I woke up with a headace and tummy cramps. when I used the restroom and whipped there was nothing, well I got to work and used the restroom again and whipped and saw this. (8:30 am)

aunt flow isn't suppose to show up untill the 27th... would this be implantation bleeding or could this possibly be Aunt Flow? I really hope to God this wouldn't be in flow. has anyone experienced this? please help!

this was a few hours ago right before I left work around 3:10 pm

yesterday when I took my LH test it was really faint compared to my positive test on saturday- Sunday which was my peak time. I took another one today and it it was dark but not positive

now i am still bleeding but a lot less then the picture from 3:10 pm. what do you rhink is going on because I'm at a loss and I'm nervous that I'm having a period in my fertility wondow...