I Have A Question I Have Been Really Healthy Throughout

i have a question I have been really healthy throughout the years and even got all test done for any possible signs of any STD my question is I have been with the same man since April of this year and EVERYTIME we have intercourse it leaves an odor behind, not a pleasant one at that is this something I need to get checked AGAIN or is this something on his part because I have had a clean bill of health since I have been in this relationship...should I be concerned? Does he need to get checked?