For the most part, yes. If you have a low-risk pregnancy and a normal labor, you can typically eat and drink anything, as long as it's nutritious (docs recommend snacks with complex carbs and vitamin B so you have plenty of energy). That said, you might not want to. Labor can bring on some unpleasant side effects like nausea and vomiting, so if you're going to eat, keep it light. And once you have an epidural, you'll probably be required to stick to liquids or nothing at all.