So I would say from 18 weeks I've felt flutters, they've got more stronger at periods and now I'm 21 weeks, but not felt anything major. Never feel movement in the day at work, I only feel it in the afternoon/evening when laying down. Today I've felt nothing and I can go days where I feel nothing. I just don't know what's normal and what isn't. I know you shouldn't worry until 24 weeks. My placenta is also posterior