You have to be asking yourself "Who really IS this guy? Which of his many personalities would I end up being married to? And WHO are these self righteous, womanizing, quasi JW quasi worldly people who are moving in WITH him?"
All this guy is is a sperm donor. You should NOT be marrying him under any circumstances. That would be meaningless except that you could now file your taxes jointly. You know how the Bible talks about that three part cord being a marriage? The wife, the husband and God? Well yours would be the wife, the husband, the organization, the elders, the elders wives, his parents, the congregation busy bodies, and ...trust me on this...God doesnt want anything to do with THAT union because it will NOT be based on any kind of love and devotion and selflessness.
If you like holidays, do Christmas, birthdays, 4th of July...you know THOSE holidays...you will no longer be able to do ANY of them again if you are living with this man. Nor will your innocent child. He will be dragging this baby to ADULT meetings several hours a week and indoctrinating him to hate all things nonJW...and that would include you Mom.
Wipe the windshield clean girlfriend. SEE where you are going. Put your life in gear and get the hell away from this guy and his cult, but before you go, make sure his ass is on the hook for child support.