STD’s

Hi, I’m going to dive right in. I was informed through a fake page on FB that my fiance had been cheating on me at work and gave a girl HSV-2. She came clean and said they started having sex in October of last year while i was pregnant. She said she went and got tested Dec 18th, they did a swab and she was positive. I immediately went and got tested, they did a urine test, and it was negative, but he did give me chlaymida. She says that she has a outbreak every week. I went this week to get a blood test. She said he never had a outbreak, but she is positive she got it from him. Please help, is there a way I can still be negative?