Help??

This is my second month tracking my bbt. Last month I started tracking the day my period finished, same with this month too. Last month my temp just after my period was around 36.1- 36.3, with the occasional 35.8. Just before ovulation it dropped to 36.2 then shot right up to 36.7- 37.1 after ovulation.

This month I started tracking again, starting yesterday on CD7 and my temp was 36.58, then today it was 36.72. These were the temps I got after I ovulated last month, why are they so high this month compared to last? I’m still temping at my usual time around 7:30am.