I got my period but its different because i don't use a full pad but some days i don't bleed is that normal i'm 25 this is the first time it's happen?

Menstrual cycles: It is common for some women to skip a period or have light periods. It is also more likely to happen if you are very athletic, gain or lose weight, using birth control pills, or have an eating disorder. Still, if you are sexually active, you could be pregnant. I would track your cycles to see if it happens often and see your doctor if you notice that it becomes more irregular.