nausea 2 DPO?! anyone?

I'm not one to over analyze anything when it comes to symptoms for the 2ww, but today is my second day past ovulation and all day I have been been experiencing nausea. Not to the point where I feel like I am going to throw up but where I feel just queasy and sick. I ate some crackers snd that helped from 8 am to about 10 am and it's back. Anyone ever have this with a BFP?