The bottom left side of my nose is sore

Mia🖤 • Mommy to my baby boy 1-13-2018💙👶🏻

I'm 18 weeks tomorrow and I woke up with the left side of my nose really sore. I didn't hurt it or anything. Usually when that happens, I have a pimple but I don't 🤷🏽‍♀️🤷🏽‍♀️🤷🏽‍♀️ what could it be?