Maybe I’m just too paranoid...?

So I had unprotected sex about five times three weeks ago, and in which every time, he used the “pull out method.” Yes. I know that that was extremely stupid and everything but at the time I didn’t really care or think much of it. For about a year now I’ve been depressed and stopped caring for myself so using protection wasn’t really on my mind. Having sex wasn’t even planned. It just happened... and he was my very first time too. So yeah... anyway, since then, I’ve had massive headaches every single day, abdominal and stomach cramping, and two days after the last time we had sex, I got my period for seven days straight and it was heavy all throughout. My usual cycle is about four/five days so it was really weird. But yeah, I’ve been feeling weird for the past couple of weeks like waking up at least three times throughout the night to pee and peeing about every two/three hours daily. I’ve also been having excessive amounts of white and clear discharge. The thing that alarmed me today is that I had some blood in my discharge and also a slight pink color. It really kinda freaked me out. I’ve already gotten a Pap smear done and got tested for everything so I’m in the clear for any STI’s and stuff which is good. I just can’t help but wonder what in the world is going on with me? I honestly doubt I could be pregnant... it actually wouldn’t be a good thing for me at this point in my life because I’m battling... anorexia... and self harm and a whole lot of other emotional problems due to trauma from a previous ex... i just hope I’m okay... I honestly think I might be overthinking this whole situation and it’s probably nothing. What do you guys think?