Test again in 48 hours if your AF hasn't turned up xx
It's possible you ovulated late ? I had a negative test when my period was due and then a positive 1 week and a half later
So this is my first time using lh test strips a bbt ... lh was at peak on dec 30th and then the app says ovulation confirmed on the jan 1st due to bbt spike but anything is possible lol
It’s probably to early to test