Rainbow baby and so nervous. Anyone else experience this?

DD

I had a miscarriage in December 2017, after trying for almost 2 years. We miscarried at week 6. I am currently pregnant. Week 4 and 5 days and so nervous. It’s like I am excited but scared to get too excited. I only have 1 tube and when I saw a fertility specialist in December he told me if I ever got pregnant again I would have to be closely monitored for a tubal pregnancy. Got my hcg level and it was 1700, going to get another on Saturday- just praying it doubles. Hoping that once I make I past 6 weeks and get an appointment on week 7 that I will be able to relax a little more. Has anyone else had these feelings?