12dpo but bleeding

I feel like I'm going crazy. I'm 12dpo my hubby and I only had sex once 12 hours after ovulation. I know I have a low chance of being pregnant. I feel like I am but that could also be me reading into it too much.

I started brown discharge 10dpo. I had 1 bloody wipe post bowel movement just before taking this test. Thoughts?? +/- ? or possible chemical? photo taken at read mark.