I'm not sure but I have a friend that is 13 years old and smokes.NOT GOOD. don't do it Im also only 13 and I'm like addicted. I regret trying a cigarette please listen to me.
You should NOT be having sex or getting pregnant at that age.
There were so many no one is quite sure but it is ten of thousands.
1,8 million
Can not find any numbers for 15 specifically but about 750.000 teens from 15-19 get pregnant every year. About 500.000 of them are 18-19 years old.