Can loosing my virginity delay my period?

I lost my virginity on the 18th. I get my period around this time of the month any day. Iv never had discharge before i lost it, but now i have it everyday! I was really stressed when i first lost it but not so much anymore. We used a condom and it didn't come off or anything.. so is it regular for a delay, and how long could it delay for? and if it helps, im under 20 years old and im having "period" cramps but no blood. :(