Chemical?

Stephanie

I had a CP last cycle. Tracked my ovulation and had my peak on April 9th, so assuming April 10 is when I ovulated making today 10 DPO. Got this on 3 tests this morning. A few hours later I started lightly bleeding. I had have dark brown spotting for 2 days. There hasn’t been remotely enough to fill a pad, but it’s noticeable when I go to the bathroom and wipe. Is this another chemical? 😭😭