I totally agree with KellyLou and Frankie, Once I got to 20 weeks and now have a smaller but proper bump and not just look like I let myself go on the waistline it really starts feeling more real. Also make a start on buying the things you need between now and the 20 week scan , and you each time you buy something it will help. - Like the cotton wool pleats, and your washbag or labour bag etc , never too early to start being organised, then you have all the things to look at , at home! Have a look on here for a list or third tri has a bag list at the top in the permenant threads. Also start collecting your free samples from the bounty bags to free or cheeper nappies etc. Then you won't feel such a fraud as I did.
Or use these lovely quiter weeks, to get done anything you want to before you get bigger and will feel less like doing it.