Chlamydia

I just got tested positive for chlamydia, took the antibiotics, but before my boyfriend and I had unprotected sex before for the last 6 months and no symptoms or anything. Should I tell him? Or just use a condom? I’m so scary he’ll be upset, but I don’t know if he has it. if he does have it and we have sex again, I don’t want to get it again. Please help!!!