help!

Shania • •4 angel babies• •24• •Bentleigh’s momma• •Expecting baby #2 July 2025•

So I been charting my Bbt since Sunday morning. Sunday it was 97.1°. Monday it was 97.4° and this morning it was 98.1°. Does this mean today is my Ovulation day? I have irregular periods so I think my app is wrong.