Tess,
Each week brings a bigger sigh of relief and as silly as it sounds 30 weeks to me was bliss and I could finally start to enjoy the pregnancy. Good luck tomorrow I hope it is a very cruisey appointment...just keep on telling them that you are concerned because of the loss of Thomas that tends to not dismiss you are a paranoid mother especially as you approach 24 weeks mine was 20 which in my case was a hard hurdle to overcome.
Bec