RE: On the 18th week of pregnancy, morning sickness lessened, but what about other activated hormones?

During my pregnancy, my morning sickness end after first trimester which I'm grateful for because I've started to irritate myself, but then I started hating anything that smells nice. I couldn't use the bath soap not my cream again and I became darker. Anytime my husband came out of the bathroom I always feel nauseous because of the smell of the soap and then everything ended when I saw my cute baby boy.