You have to make the arrangement to meet once a month or he wont bother. Does this sound like a man in love to you? Why isn't he desperate to see you? Your children will be raised as JWs whether you like it or not. So no birthdays or holidays for them either. They don't do Valentine's either by the way, but does he buy you flowers at other times?
Your sentence below worries me. I don't know your boyfriend but JWs are not open minded about religion, believe me. I have been separated from my JW family for nearly thirty years since I said I don't believe it any more. Kids that I didn't see grow up. A baby I have never seen. You need to know this, I am pretty sure you will be asked to convert and it will impact your relationship. Good luck with your decision. I know it won't be easy.
I'm a open minded person and it didn't bother me that he was a JW as long as I was not forced to convert or anything