Signs of pregnancy?

Savannah
During my CM check a day ago I noticed it was a faint brown, it's the right timing for implantation bleeding, I ovulated 10 days before it showed up. I took a test last night and it was negative but my period isn't suppose to be here for 4 more days so maybe it's too early? 
AND last night I was studying for an exam my husband was on the opposite side of the house getting ready for bed when I smelled something so amazing! Familiar but I couldn't place it and when I followed it, he had put on deodorant on the other side of the house..... So between the strong sense of smell and no cramping with a day or two of light brown discharge I'm praying I'm pregnant. But I've always been wrong before and the negative test makes me sad. Any opinions, past pregnancy experiences? 
Could I have these symptoms without being able to get a positive yet?