[NSFW]Can i get a sexually transmitted desease this way?

My boyfriend just recently told me he was tested positive for chlymidia. I of course got checked & my results came back negative.So long story short..we had oral sex one night..he wore a condom while I gave him a blow job & he went down on me.I didn’t exacly think about it till the next morning, if he could pass it just by putting his lips and tounge on my vagina..so that’s my question.. is there a possibility that I would have it by just that?