Hello everyone!

I am a 23yo woman. I've had 4 years ago my first time with a guy that I thought he was actually interested in me and a relationship. I was in love and he managed to get me in bed and as I was naive, we did it without protection. I know I was stupid for allowing it. I've never had intercourse with anyone after that. I got into a relationship recently with a 21 years old man and we are planning on having sex. I cannot stop wondering though, even though I never had any health problems or symptoms since that encounter (besides the typical urinary tract infections here and there over the years), could there be a possibility for me to carry something without knowing? I would like to mention that we are planning on using protection. Any advice for me?

Thank you!