Hello I Have Had 2 Sexual Women In My Life.

Hello
I have had 2 sexual women in my life. A girlfriend 11 years ago when we had sex and now my wife of 10 years ago. My wife has only had 1 paps that was 3 years ago and tested negative on all and we had a son 2 years ago. So I'm sure std tests were done. Im her first everything sex /bf/husband/etc. If I had got trich with my girlfriend years. Can I expose it to my wife at anytime? I've read where it can go dormant in men and suddenly symptons appear. So I'm afraid I could give it to her at any time. If she is exposed.