Could I be pregnant?

18dpo. Negative tests. But I have back aches and weird cramps in my lower abdomen. I’ve had an elevated temp for like a week. I have a lot of CM. My period is supposedly 3 days late. And I’m on cd 40.

I also got a really dark ovulation test today... which was really weird. I’ve read many stories of people not getting their bfp until 20-25 dpo. So, maybe I could be pregnant?

I’ll post a picture of my ovulation test I took today.

Thoughts would be appreciated. 💕 thanks.