Im nervous

Two weeks ago I had sex, we used a condom, but I forgot to pee afterwards so I ended up getting a UTI. I went to the doctor and they did a UTI test and a STD test, they told me I had a bladder infection, in which I got pills for and Its gone now, but I still have not received the results from the STD test, and my period is now 2 days late, which is scaring me even though my period is not super...whats the word.... well... It doesn’t always come when I expect it. But Im just really really scared.