sperm...sperm...sperm!

Not sure if this is the right forum for my situation...I'm a 25 yr old female and ever since i can remember, I've always been afraid of SPERM and the thought of it being EVERYWHERE disgusts me.
I can't sit down on toilet seats, I can't use toilet paper unless i rip a ton of it off first because i'm afraid there's ejaculate on top of it, I get stressed using a towel out of fear there might be ejaculate all over it even when it is washed. I live in a house with my boyfriend and 3 other guys so its really hard to get the thought out of my mind. The 3 guys live like disgusting pigs and don't clean up after themselves so i imagine they leave their sperm everywhere as well. I have a hard time being intimate with my boyfriend but when i do come up with the courage, he always has to wear a condom and recently the condom ripped so you can imagine the $hit show that went down when that happened. The thought of sperm inside me disgusts me! and just my luck i am now pregnant and i can't get the thought out of mind that it could be someone else's besides my boyfriend. I've never slept with anyone else but my anxiety is making me think maybe from the sperm that's left all around the house from the other 3 guys, on a towel, or in the shower, on counter tops? I can't talk to my boyfriend about it because he would probably think i'm a nut case.

I think this is a good place to post, indigosky. And I think you're right that it is an anxiety rather than anything grounded in biology or practicality. Sperm's pretty puny stuff. It needs a direct insertion method [cock / turkey baster] to cause pregnancy. There's no way for it to have started anywhere outside your body and made its way in. I'm sorry I'm stating the obvious. I know you know this. And that it's about fear not reality. That's really hard to deal with.

Is there anyone you can trust to talk about it with? Someone who'll be supportive about the fear as well as helping you deal with the pregnancy as you choose. That's too much to handle by yourself, it's not fair on you.

This is actually quite common. An article by Jonathan Hershfield speaks to this, as there are many different forms of Sperm contamination OCD.
The article is called: "Blood, Semen, and Bodily Waste… Oh My, Part Two: Semen."
http://ocdspecialists.com/2014/09/semen/
There's also a small discussion about it. Maybe this can give you some clarity or more information to help you.