A big mistake if you do. If you get baptised and already have disagreements with the teachings, you will only resist for a short time by keeping your mouth shut, then you wil expolde like an atomic bomb, even looking at so called apostate sites such as this one can warrant a disfellowshipping, any disagreement even mentioned casually will alert to many Jw's that you have apostasy tendencies, you are not allowed to free think, you have to agree with everything they teach.
if you end up getting disfellowshipped you will loose all contact with the witnesses which will put a massive strain on your marriage.
Your boyfriend is most likely too scared to voice his opinions as he is most likey in the religion to please his mum and dad and so he won't be shunned by them.
He meet you as you not a JW so why cant he stand up to his parents and just say this is the girl i love i don't care that she is not a JW, why do you have to bend for him ???