, I will tell you (assuming your partner is male) that #1 if your partner had chlamydia he would have eventually had symptoms within the first year that something was wrong. It may be asymptomatic but it will rear it's head
If you were recently diagnosed with chlamydia, you should re-test. Your partner needs to test also (this will tell help in answering if indeed he infected you). Importantly both of you need treatment.