Negative thoughts

Jessica
I just found out I'm pregnant, my first pregnancy, on friday 10/23. I'm excited but more scared. I keep thinking the worst, I haven't been to the doc yet ( I go thursday). All my thoughts revolve around having a miscarriage or still birth. I'm keeping myself from being excited because I've convinced myself something is going to go wrong. My husband is so fustrated with me, says I'm too negative, I agree but can't help myself. Any advice, am I alone in feeling this way?