Estrogen and testosterone drop for half the week, then estrogen rises again; progesterone rises throughout: You may find certain odors or sights more repulsive than usual today, for instance, when smelling cleaning supplies you’re using or while watching a gory TV show. That’s progesterone’s fault. As this hormone climbs, researchers say its job is to steer you away from potential threats in case your egg got fertilized during ovulation at the end of Week 2. And, one key way it does this is by making you more sensitive to stinky smells or gruesome sights. Find out more by downloading the Hormone Horoscope App.