Thread: Off And On Period?? Should I Worry?!! Help!!

hi, im 20 years old about to be 21 in october. and my period has been very strange for a couple months now. i am kind of worried because i've never missed a period since i first got it when i was 13. It started in Nov 2006. I didn't get my period in november but in december i got it at the end of the month and in january i had it also. But after january i didnt get my period for the months of feb, march, and april, and then when MAY came along i finally got it and it was a normal period. And then in June I DIDNT GET MY PERIOD but in JULY I got it at the end of the month and it was also a normal period! I am 150 pounds and i dont know if diet and weight gain is a factor because my normal weight is 115 I have gained alot of weight ever since i graduated high school in 2004. I haven't had a pelvic exam yet either. Someone please tell me whats going on and should i see a doctor?!