Is it a sign of pregnancy?

Based on my period I should be about 3 weeks along if I am truly pregnant.

I have had EXTREME food aversions for the last 3 days. I cannot eat anything without wanting to stop eating and starve myself instead.

I got a bloat for the first time yesterday and it was so intensely painful I wanted to cry.

Tonight I started vomiting after laying in bed with my husband and having baby conversations.

Could these be signs of super early pregnancy?