Don't stress for starters! Keep a positive attitude and know in your mind your baby is fine. I miscarried at 19 weeks two years ago, this pregnancy I was worried allot. I kept telling myself I made it this far I can keep going. Sounds lame but self encouragement will keep a positive attitude and keep the stress away. Your close to 12 weeks and that's when you can reduce the chance of miscarriage. You should be fine, best of luck to you and baby!
I was the same way, most mothers fear miscarriage but u only have a few more days before the risk of miscarriage diminishes severely. I can tell you to take it easy and don't worry or stress.