Hi i had unprotected sex and lost my virginity then i had my period 2 days late followed by pink spotting the following month and irregular periods

Track your cycles: that you are still having periods despite their being irregular is reassuring that you are not pregnant. The irregularity however is unlikely to be related to intercourse and instead be something going on with your body that may or may not be affected by circumstances around you. It would be a good idea to track your periods and discuss patterns in a consult