1" when erect or flaccid?
If you have pubic and armpit hair you are in puberty. Don't worry about the size of your penis, it can grow into your early 20's.
You don’t have to do anything other than give yourself some time to grow and develop you are in the early stages of puberty and for being 14 that is perfectly normal.
You may have not started puberty as young as some guys but you are developing just as you should be.
At the moment your penis may be a bit on the smaller side and that can be frustrating and a little embarrassing in the locker room but you have lots of time to grow and develop and your penis will grow as well.
Just as people come in all sizes the same is true about the penis you are probably 3 or 4 inches erect and that is fine for the early stages of puberty.
Everyone grows and develops at different rates and times and it hard to predict how long it will take and what the end result will be but you will grow and experience all the changes associated with puberty so try not to worry it will happen.