Should I go to the hospital? TMI

So I am very early pregnant but this doesn’t seem related.. I tried to call my local hospital but all they told me was they didn’t have an advice nurse and I just wasn’t sure if I should go in for something like this or not. Anyway, I have stomach pain on & off and feel like I’m getting hot on and off and I keep having to go to the bathroom because I think I have diarrhea but there’s blood in my stool , sorry tmi. And I’m positive the blood isn’t coming from my vagina.