Symptoms after first sex experience

I lost my virginity three days ago, two days after my period ended, and I have been feeling a slight pain around my lower belly area. I’ve been also having a discharge, thick brownish that sometimes is colorless.

Is it normal to have these symptoms after the first sex experience?

When we were doing it we used a condom, then we stopped like for 5 minutes and he took it off, then we started having intercourse again but we forgot he took off the condom. He never ejaculated. I am not taking contraceptives yet.