Just try not to bring this one up on the first date.
You don't need to talk about baby names the first time you hang out, but you should know if the person you're interested in is going to move across the country within the next three months before you get emotionally involved.
Since a study by Breakthrough for a Broken Heart author Paul Davis says that it only takes an average of six to eight dates for couples to become "exclusive," you might want to cover all your bases pretty early on, too.
It's completely up to you to decide what you can tolerate and what constitutes a deal breaker, but no matter what, you should be armed with the information you need to make an informed decision about your love life.
After all, chemistry is great, but it becomes irrelevant when you and the person you're dating disagree on fundamental issues. It's your call to decide whether or not you'd want to date someone who was once arrested on a serious drug charge or has a habit of not paying their parking tickets, but if you think you're going to be spending a lot of time with them, you should know what you're getting into first.