Hello, Im A 25 Year Old Female. I Have Been

hello, im a 25 year old female. i have been getting my period (full flow) every two weeks for a month and a half, this cycle that im currently on has lasted 7 days and is lightening but still need a tampon. these periods im having are coming without any symptoms at all. no cramps mood swings or anything except a light headache. i am sexually active and have been under a great deal of stress but ive been pushing through and staying in high spirits. planning on going to the drs my next day off but would love some insight.