I've been with the same sexual partner for 17 months. However, as I work away, I only see him about once a month. We have unprotected sex everytime. He has never ejaculated in me until about a week ago. If I was to get an std from him wouldn't I already have gotten it through pre-ejaculation fluid? He doesn't have to ejaculate in me to get an std, correct? I was tested for stds including hiv about a month ago and I was fine. However, now that he has actually ejaculated inside me, I am a little worried. I'm a 33 year old female. and my partner says he has no infections, but I'm still concerned as I only have his word for this.