Can I eat corn beef when being pregnant?

Yes. You do want to avoid processed meats (they are usually in shapes like squares and circles) unless they have been heated to the point of steaming. So, a vienna sausage out of the refrigerator is not a smart idea unless you pop it in the microwave first. The march of dimes has an excellent food safety summary found here: http://www.Marchofdimes.Com/pregnancy/nutrition_risks.Html.