Hi So I Had Sex With Someone About A Month

Hi so I had sex with someone about a month ago and about a week after I started coughing and eventually it turned into a cold but it's been a month now and I still cough a little and my nose is a bit runny. I Know this was the worst thing to do but I went on google and now I'm scared cause I think it might hiv. It's been a month I shouldn't be coughing still. Any ideas on weather it might be bronchitis or anything? I'm just a bit freaked out