Hi Ronaldo2016... I am quite unclear of "condom slipped .. exposing me to vaginal fluid". Did you penetrate her unprotected after the condom slip? If you did, then you had an exposure. If you didnt, you risk doesn't exist. In a risky situation, the usual recommendation will be blood-drawn ag/ab test at 6 weeks followed by a 12th week ab test will be conclusive. You tested rather early at 3 weeks, but hey, any negative result is a good indication at the moment. Some would consider the 6th week to be conclusive, I would love to too, but until the CDC changes its stance, the 12th week conclusive ab test conclusion stays. I leave you with this info to decide. Good luck.
iam also in Window period but all say hiv test conclusive after 90 day mark . I also very worried about hiv sleepless night