Can hot and feverish be synonyms?
Certainly; a person running a fever will be hotter than normal, hence, both hot and feverish. There are, of course, other contexts and meanings of the word hot, which would not be synonymous with feverish. Angelina Jolie is hot.
I dont know about feverish, but I was always hot! Some women do feel feverish in the early months due to the hormone changes in their body.This usually settles down as your body adjusts.However,it would be far better to see a doctor about it because of either the risk of a general infection(very high fever could harm your baby),or an infection which is specific to the pregnancy,which is potentially equally serious.