Whatcha think? So 2days ago I had just under a positive. Then negatives since. Took and cb advanced…

Whatcha think? So 2days ago I had just under a positive. Then negatives since. Took and cb advanced digital this morning and it was low (empty circle) and now this right now. I don't get it. I'm starting to see specks of ew cm not a lot so I know I'm not super close to O as i usually have a ton of ewcm day b4 O. And I'm cramping a ton. I'm so confused. I've been so moody yesterday and today BD is almost out of the question. It's so not like me.