Not sure what to think

Hey everyone,

I am nervous about posting but here it goes. We have been trying for 2 years to conceive my doctor put me on medication to help the process along my period for November never showed up. I have been regular since starting the medication. I was due to start around the 4th of November. I've taken several test they all say negative. What could be going on? I have noticed that my sense of smell changing everything smells disgusting, certain foods that I once loved make me nauseous. I killed a spider today and it made me throw up. Ugh help this is annoying and confusing.