this should be in sxual health not genitalia, but anyway go for a blood test for hiv/aids, and then another one in 6 months (sometimes takes a whiel to show up or gives a false negative). blood tests dont raelly hurt much, they dont tak elong and better safe than sorry right? chances are low since you wore a condom but theres still a very low possibility, go fin da planned parenthood and see if they can offer any advice/payment options for a hiv test. or get a job to pay for it, you are 17 after all
the studies shows that the transmission from MEN - Woman is 60% less likely, but if a woman has it, than that is differnt, During intercourse if the woman has HIV already, the thrusting of your penis will cuase little tears in her vagina wall, causing enough breakage for the cells of the virus to be transmitted to her partner, this is a much higher percentage. Even if you are circumsized the studies arn't conclusive YET with woman to men! Only men to woman
Also, don't worry about kissing (you'd need about 16 gallons of saliva to get HIV unless you have an open wound in your mouth) and/or fingering (again, unless you have an open wound).
If you wore the condom properly...STOP worrying...you are FINE. Even if you didn't wear one chances are slim, but very possible. YOU ARE OK!!!
First of all, the chances of a hetero male getting hiv from a women when he was wearing a condom and it didn't break is about 1%. Possibly less. Second, was the condom latex or sheepskin? If it is latex, the chances are even less. Family planning clinics usually conduct free and anonymous tests. If there is not one near you, a urologist will perform the test as well. Enough time has passed for the test to be accurate. If she really was as promiscous as you believe, then chances are she would have other stds, which would show up first. And since we're on the subject, unless you actually saw her having sex with several people, how do you know she is such a "slut".