Hello! I'm a teenager and I've had periods since I was ten. My periods are never exact. They are always from day 28-32 and today I got my period at day 38! Is it normal? Plus after my last period I'm having lime-green discharge without any odor with pasty texture and I'm very itchy there. How do I fix that?

Additions; I've never had sex. If that helps.

Sounds like an infection. If you are sexually active even a possible STD. Time to see your doctor.

Yes periods can vary in time, so 38 days, even missing a month now and then is not uncommon for some women. But the green discharge is a concern and should be addressed by your doctor.