dodgy, though. it's not just pregnancy you have to worry about...

Yes, but if you're a guy and of the mindset that life isn't worth living without sex, you will prioritize sex over your physical health.
I know I am clean and I wouldn't get with a girl who I didn't feel was clean as well. It's not like I live life on the edge or anything. I trust myself and my judgment in women.
Sorry, but that's just plain stupid. Who you "didn't feel was clean as well"?
Are you on the Spectrum, Trigger? How far will you trust your instincts? And if you are not, the same question all over again.
I have AS! Seeing as how I have never pursued a woman, and always ignored the one sthat pursued me, I've never been in the position to question my instincts. If I was out there dating different women, and sleeping around, then I would definitely wear a condom. I am just saying that for me, and my lifestyle and experience, I don't need them and don't wear them. Every girl I have slept with, except one, I have known a long time, and well enough, to feel confident. Plus, I've been tested. So I know I am clean.