First time charting

Kim • 👼🏻MC 12/5/17👼🏻💖09/2018💖💙11/2019💙💖02/2021💖💙01/2022💙

Had a mc on December 5th. Bleeding lasted like a period (5days). Went to get blood work on December 29th and doctor said my results were negative. I finally got my positive opk that same day (12/29). Today FF has me on 8dpo. I’ve had some cramps these past days. These are my recent bbt: 1/1: 97.33F 1/2: 95.45 1/3: 97.34 1/4: 97.45 1/5:97.58 1/6: 97.81 Today it was 97.39. Could i have really ovulated? Is today’s bbt a bad sign? I don’t know much about charting. TIA