So today I'm approx. 7DPO.. Yesterday after work I got home went potty and when I wiped I got this ....

.... After that nothing for the rest of the night. I woke up this morning for work and had the same color on the tissue paper but only half the amount of the lighter of the 2 pics. Today at work I checked my CM and only got this....

..only a very small amount... I went to the bathroom 2 maybe 3 times during the beginning of my shift anr only got very very small amount of the brown / tan coloring on the toilet paper... Now I KNOW brown is just old blood... But I'm still a week away from AF and I never spot like this.... Also the spotting is now done I havent had anymore show since around 3 / 4 PM today and ive used the restroom twice now.. I do notice some sorness/ muscle ache on my legt inner thigh /hip / groin area... wondering if this could be me experiencing Implantation cramping / bleeding. Here is my calendar (old screenshot from 2 days ago) my peak OPK was on 1/14.. So glow estimated O day for Wednesday 1/16 (1 week ago) can u get some insight ladies? Please.. TTC#1 (we also used preseed on 13th and O day)