Can I be pregnant

This is my bbt chart, Can I get a BFP. I had spotting on Aug 21st brown and pink for two days and later for 10 days I felt all the cramping. But now I feel like my AF is coming up. I have most of the symptoms ( acid reflux, cramping, vivid dreams, tired, fast heartbeat ). All these from past 10 days. I’m afraid to give a test which might be negative.

Can I be pregnant?