Ob-Gyn questions? Ask a gynecologist online.
This is Dr. David
with lots of stress from work and school, you can miss a period
when you miss your period, your next period tends to be heavier and longer.
if you don't want to get pregnant, you should use birth control next time you have sex to prevent pregnancy.
you need to see a gyn doctor for a gyn exam if you are sexually active.
but I would not be stressed if you missed a period one month and get a heavy period the next month.
have you had a gyn exam before?