Perfectly normal, particularly so if, as in my case, your own experience of giving birth was an emergency Caesarean for our firstborn, and that was in 1971, so a much bigger deal back then. All fine with the second in 1973, but that initial experience stays with you. All I'll say is that if you are anxious, do everything you can NOT to communicate that to your Daughter, even if it means conjuring up an Oscar-winning performance on your part. Hope all goes well. It will all be worth it.