The list of foods that should be avoided during pregnancy are:
Liver - it may have too much vitamin A Smoked salmon Fish liver oil supplements such as cod liver oil Raw eggs - ensure the yolk and white are solid when having a boiled or fried egg and eat only manufactured mayonnaise Undercooked meat (even cooked until pink is not cooked enough) Unpasteurised milk and milk products such as cheese and yogurt (both cows and goats milk products) Soft cheese such as camembert or brie and blue veined cheese Unwashed fruit and vegetables (take care when eating out and especially on holidays abroad and only choose cooked fruit and vegetables) Peanuts - avoid during pregnancy and lactation as it may help to avoid allergy Alcohol - the balance of evidence suggests that drinking alcohol should be avoided
The UK food standards advice is that smoked salmon is fine. The chance of listeria contaminiation is so tiny that it isn't considered a risk. As for unpasteurised cheese, any hard cheese is safe, pasteurised or not, as listeria bacteria need moisture to survive, and hard cheese doesn't have enough. I didn't worry at all about eggs. Just choose ones that are lion marked, as the hens have been vaccinated against salmonella, and those eggs are not contaminated with salmonella.