Symptoms Gone!?

A
Hi everyone! I could really use some help now! I am 7w3d pregnant! Right at the beginning I had symptoms such as: 
- I felt EXTREMELY tired all the time especially when I was off I was just staying at home and laying in bed, felt like I can't do anything;
- Extremy sore breasts, very heavy and a little bigger than usual;
- Slightly cramping here and there.
So that's all I had, no nauseas or vomiting! 
For the past week I had horrible cramping (no blood, just some vvvvvv light brown spotting and justtttt a little, like a drop). 
I am worried now that my symptoms are gone. Not so sore breasts, just a little and not that tired anymore. I mean, I can still go to bed at 10 or maximum 11, by 11 I am already worn out. 
Has any of you had this? It would really heeeeelp, please any advise would be good. Thank you very much!