Kid, I was just in college, knew plenty of slutty girls, and no one I knew had an abortion. Almost every girl is on the pill, since college is typically filled with people who have basic level education and know how easy it is to prevent pregnancy.
Also, it's not like everyone is fucking left and right in college. Christ, this is what happens with abstinence only education, people grow up with tv/movies as their only real source of knowledge of what sex is like/how the real world treats sex. There are a couple of slutty people who will give it away for free, but it's rare. Most people date a little bit and have sex a reasonable amount. So some sex advice, cause it sounds like you need it:
1) You will get an opportunity to have sex within the first week. Reading your writings, it sounds like a punk/emo/goth/insert-high-school-"rebellious"-lifestyle-here girl will think your naivete is charming and will want to be your first so she can keep your virginity as a trophy for all time. Other girls to look after are the geeky girl who wants to watch a movie with you all night, and especially the super prudish and religious girl who loudly declares to all she meets on the first day that she's saying herself for marriage. The latter will be having sex on the 3rd day. It's like goddamn clockwork. DO NOT HAVE SEX WITH ANY OF THESE WOMEN. They're in a vulnerable place, you're in a vulnerable place, fuck, all of the freshman class is in a vulnerable emotional place for the first year, but ESPECIALLY in that first month. You will be emotionally scarred by this. Thank god I was a nervous little bitch and walked out on that skanky geeky girl on the second night, 'cause I know it would have been rough and losing it with my first college girlfriend two months later was much more rewarding. Wait for a relationship
2.) Sex isn't the holy grail tv/movies make it out to be. It's just really really good to great, not mindbogglingly epic. So don't worry if you're not having it right away.
3.) Definitely don't walk around telling people you plan on having sex or anything that would betray your lack of knowledge on the subject. You will never find anyone sane who isn't immediately turned off by that. And for good measure, don't go declaring that you're pro-life from the rooftops. There will be plenty of chances to speak your mind in the appropriate classes, or late night deep discussions with someone you trust. It's not that you should hide who you are. It's that being an adult means learning that you can make a lot more friends if you don't greet people by telling them all the reasons you think they're wrong (a lesson I learned by the end of freshman year).
I'm sure I just wasted my time since these are the kind of life lessons you need to learn for yourself because your teenage brain automatically ignores advice from adults, but hopefully some of that stuck.