I'm having a period every other week?

I have been working as a camp counselor and I am on birth control. I had my period the 2nd week of May and the fourth week because of camp then I was off for a week then it was the week I should have had my period and I got it again then I was off the next week the following week i got it while I was working and then I just ended a few days ago but I know I'm going to get again should I go to the doctor or do you think after summer it should go back to normal?