Crazy? I am 10dpo and just got a bfn. I thought for sure it would be positive. I keep getting these…

Crazy?

I am 10dpo and just got a bfn. I thought for sure it would be positive. I keep getting these random waves of nausea. Nausea isn't normally an af sign for me so I thought for sure I was going to get a bfp! Now I'm just depressed and confused.