Cramping stopped

Britt
So my cramping was going on daily since about week 5, (I'm 8 week 6 days now) and its suddenly stopped two days ago. I'm worried this means it's stopped growing. I also had a fever a couple nights ago, so I'm wondering if I'm going to miscarry. 
I've also never had any bleeding throughout. 
Has anyone else's cramping stopped early?