What the actual heck is going on with my temp?

Halei

Super disappointed by yesterday’s temperature. Chart was looking good, then BAM! Today, it went back up a little, though.

For what it’s worth, my sleep was WAY off Saturday night. I went to bed about six hours later than usual and only got 5 hours of sleep. Would that make this kind of difference? 😭 I’m really grasping for straws here.

No period cramps today...