confused?

Samantha
So I'm currently in my period and just had a dry heave spell at 6:30Am. I currently have a UTI that I think is turning into a kidney infection. I get occasional nausea spells like the one I had just now, but I never throw up. 
The closest thing I got to sex was dec. 5th when we both didn't have a condom and he wanted me to feel him so he put himself in me and pull out right away, he didn't come.
Is there a possibility that I'm pregnant or is all this possible kidney infection? I'm going to the ER tonight after work, but I'm super worried and definitely not in the place to a kid right now.
Thank you!!!! 💜💜💜