Ovulation question

Hayley • 32 years old. MMC 8/5/16 at 13 weeks. My rainbow baby, Milo Wild, was born 8/30/17! 🌈 Chemical 11/2020. Baby girl Due 9/9/2021! 🌈
I am 19 days past my natural miscarriage and for the last three days have felt ovulation type pain. The top ovulation test is super positive but the pregnancy test is still showing a super faint line. Is it possible to ovulate and still have hcg in my system? Never thought I would be hoping for a bfn