Positive hpt but now bleeding...chemical?

Jill • Mother of a 6 y/o girl, TTC #2 w/PCOS, hypothyroidism, s/p bariatric surgery (down 180 lbs), currently on clomid...hoping for miracle #2!

I started spotting at 10 dpo. But I felt different. Spotted all day yesterday and my boobs were super sore. This morning I took a test with fmu (see pic) but now bleeding heavier like a regular period. Is this a chemical?