I'm 21+4 and have been feeling quite regular movements for the past couple of weeks. Today baby has been really quiet. I have been out a lot - long walk and then Christmas shopping - but it feels unusual not to feel anything. I had my booster yesterday and even though I went in well informed and happy to have it, I can't help worrying now. However at this stage I don't think they'd be able to do much anyway. Is it quite common to have quiet days at this stage? I've forgotten when I started counting kicks with my first dc!