If you get in to a conversation about pets, and you tell the person you are expecting, and when they ask you when, you reply around 45 days, to which they respond, you don't even look pregnant, and you get offended they didn't know you were talking about your snake.
If you have ever spoken "baby talk" to your snakes, and will swear they understood you.
If you once asked a friend who announced they were pregnant, "That's wonderful, when did you ovulate ?"
If you've ever told your gravid female, "You are not fat sweetheart, you are beautiful."
Gale