Dazed, you can get hiv and many other sexually transmitted diseases if you dont use a condom. And remember that sex includes anal, oral, and vaginal. Yes you can get things like herpes and gonorrhea in your mouth/throat too. Also, there are diseases you can get even if it is protected... Such as genital warts and herpes. Also remember that just because he doesn't "cum" inside you doesn't mean that fluid is not being released during intercourse. The only thing I can tell you is that if you are having unprotected sex you should make sure you are tested on a regular basis. Make sure both you and your partner are tested for chlamydia, syphillis, hiv, and hepatitis b. You should also be tested for syphillis and hiv again after 6 months to make sure there was nothing incubating that did not show up on the first test. After that you should be fine if you remain with only that person and that person is only with you. If you change partners, make sure they are tested prior to having any form of sex. If you have anymore questions you may e-mail me as I am new to this forum and not sure how often I will have a chance to look at the posts. Also,
www.Cdc.Gov has lots of good information on the subject if you want to look there (center for disease control). I work in public health so if I don't know the answer to your questions I can surely find something out for you.