sorry...just noticed the date that you posted. a test at this point will reveal your status and you can move on from there :)
AFTER every sexual partner you have????? i think not...might be too late AFTER!!!!!
you should always use a condom until you are sure of a person's status.
now...should you test??? damn betcha! you had unprotected intercourse. even though the chances of this young woman are pretty slim that she has hiv...you do not know her status. a test at 6-8 weeks after your last unprotected intercourse will give you a good indication of the final result...but 3 months is conclusive.
It sounds to me like you have irrational anxiety, and I would say it's no reason for you to test for hiv. On the other hand it's not a bad idea to get tested for std's (including hiv) on regular basis (like yearly) for a sexual active person who is not in a steady relationship.
She told me she was clean at the time and we only had vaginal sex, is testing warranted in my situation? Should I get tested after every sexual partner?