Nervous

Hi ladies, anyone else feel consumed with worry over possible miscarriage? I'm only 5 weeks 1 day, and it seems these pesky bad thoughts constantly creep into my mind. I've had one MC many many many years ago. I'm 30 (almost 31) and we tried so hard for this baby. Now I find myself always worrying about MC. Positive thoughts and prayers would be appreciated. I just need more of an ease of mind than stories of loss please. I hate being this paranoid and know it's not good for me or baby. 
Positive thoughts for all you fellow mommies to be and TTC. ?