sex pain

hello!

So I wasn’t sure if what i’m feeling is normal but every time penetration happens, it hurts so much. it feels like my vagina is being forced open but after a while it feels okay. however it does feel irritated after a while and turns red so i just have to stop halfway. I’m not sure if that’s normal or not. i have done std tests and they were all negative. should i go see a doctor about this?