15 years old

I'm 15 and have been with my boyfriend a long time know. We recently had sex for the first time. We used a condom and he pulled out also. I always had irregular periods but I get so worried so easily. I suffer with depression and anxiety so I am worrying way too much to the point I physically get sick. I was due my period on the 25th but it never came. I'm so worried please don't judge I just don't know what to do