Having a tough day :(

I am having one of those days where I  just terrified that something has happened to my baby since my last ultrasound. It's so far between ultrasounds that I just get so nervous. I wish I was just able to go and get an ultrasound or to hear the heartbeat to ease my nerves. I'm 10w 5d and my next ultrasound is not until May 27th and I'll be 13 weeks then. I am so jealous of women who don't have that worry. The innocence is gone :(