Hi Babygirl, and welcome.
I feel so bad for you having to be put in this position and at relatively such a young age. As teens, we are going through SO many changes, both emotionally and physically. I can safely say that this ISN'T the time to make life-long decisions that will change your lifestyle forever. You are at the thresh hold of your life and have plenty of time to learn and experience the things that will come your way.
Becoming a JW isn't like the difference between a Baptist and a Methodist, or a Catholic and an Episcopalian----it is a whole different set of teachings and beliefs that go contrary to ANY other religion and once you committ to it---you're there forever! No one leaves quietly and simply. IF you have a change of heart or discover for yourself ALL the deliberate lies and deception that IS the Watchtower Society---then all the friends and family who are JWs will shun you and never have anything to do with you unless you go back to JW beliefs.
The Society rules every part of your life---from where you go, who you can speak to, what movies you can see, what music you can listen to, and even right down to what kind of sexual practices they approve of.
It's a hideous and dangerous cult and I speak from experience---I was a sister for 30 years, and raised 5 children and a grandchild that we took in---in a religion that didn't allow Birthday parties, or Christmas, or Easter, or ANY holiday that others enjoy. They couldn't join the scouts or pariticipate in any after-school activities, they weren't allowed to go to the Pep rallies in school. Of course there was no Prom either.....so this is what the kiddies look forward to.....nothing but endless meetings and field service.
Even as much as I've written here---this is only a small idea of all that you will encounter. They will intrduce and indoctrinate you slowly so it doesn't "seem so bad" but it IS a total upheaval in any prior beliefs and a loss of many more activities that you've been used to.
You BF sounds like a very nice guy and this WILL be rocky for you both---because his family will NOT approve of you until you become a JW because they are taught that's what God wants.
If you are studying, and decide this isn't for you, then you have to be prepared to face the consequences of their disapproval. It will be hard, especially when a BF is involved and torn apart as well. I wish you the best on whatever you decide to do...
Please let us know what develops and what's going on.
hugs
Annie