Dreams are the master's own dreams. The theme is fear, fear and escape. The monster in the dream is a monster who is afraid of that thing, and may take safety measures for fear of pregnancy. It is possible to ask white people or the internet how to do security measures.
Boyfriend's dream is more direct. Is to worry about or think of possible results and directly turn them into results.
Roommate's dream is worthy of scrutiny. If your roommate dreams without knowing about you and your boyfriend, her sixth sense is quite vivid. But I think she may know, (of course you may have told her). In her impression, you are pregnant before marriage (you are an unmarried husband in the dream), hehe.