Iron Golem not spawning in village

I have a village with 14 villagers. The original Iron Golem has been dead for a long time and the village has never had another golem since. For many in real life days a golem has never appeared. I also notice that during meeting time that the bell will have angry villager particles around it. I don't know whats wrong, all the villagers have beds and work stations, I constantly trade with them, and some villagers were attacked by zombies before. Help fix this issue.