Chlamydia

So I tested positive for chlamydia & ive been married for 2 years. My husband “swears”🙄 he never cheated and is lowkey gas lighting me saying it’s probably from previous relationships. I got tested back in August 2019 for my regular pap & it came out negative as well & I know for a fact I haven’t had any sexual contact with anyone BUT Him since before we got married.... so basically I’m just here to ask I’m not being crazy for blaming him for cheating right? Lol