I got my scan app after I went to tell doctor I was pregnant. Had a pre booking with midwife but that was the biggest waste of time, it was basically to meet midwife and that was it, no checks, very little advice, didn't even get a book! Will get my next midwife app at 12 weeks after nhs scan for bloods etc so hopefully that will be more useful, won't be worrying about stuff so much by then! I'm sure you could see your midwife sooner if you have worries though just make an app.