I tested negative at 8 weeks via an ELISA test and went to the clinic 3 months following ANY possible exposure and it was also negative!! I was so worried but this backs up everything everyone on here is saying, once you test neg. at 8 weeks you're very unlikely to test anything other than negative at the 3 month mark. I hope this serves as some consulation as you all did to me while i was going thru all my anxiety!! Thanks again EVERYONE!!!