Should I go in to be seen tonight??

Molly
I'm 13 weeks pregnant and haven't been nauseous or puked in about a month (I got really lucky!) Last night I had the WORST uti symptoms ever. I'm talking cramps, burning when peeing to the point where I tear up, chills and shakes. It was awful! This morning I was completely fine! Weirdest  thing, I just decided to brush it off. I'm starting to think that was a very bad choice as I am now hunched over in pain. My lower stomach, lower back, and right side around my rib cage are killer painful. I have uncontrollable shakes and chills. To top it all off, sudden nausea that just caused me to lose cookies I didn't even have to begin with. The only thing I don't have is a fever. Should I wait and just make an appointment with my GP or should I go into the er tonight? I want to make sure baby is safe but I also want to make sure I am. I've had uti's before but never like this! Please help!!