Miscarriage Worries

Hi ladies! My husband and I have been ttc since last September (well, that's when I stopped my birth control). We found out we were pregnant in February of this year but I had a miscarriage at 5 weeks. It was so traumatic that I was afraid to even try again. After a few months of not trying and the deciding to give it another shot, I just found out that I am pregnant again, only 4 weeks. I am petrified.

To the women who have had a miscarriage and then went on to have a successful pregnancy, how did you deal with the constant worrying that it will end the same way? I'm too afraid to feel happy or excited because I don't want to be let down again. Please send some encouragement!