Food aversions

Nope • First time home owner - Ttc baby #1 - Getting married July 2017!
So, I keep snacks at work because I am always hungry. Today I pulled out a snack cup of olives, I love olives. But as soon as I opened the container I had to throw them away. The smell was SO bad. AF is due 4/11, so I am hoping this is a symptom. 
I am going to feel so foolish if AF does show up lol because I made everyone smell my olives!