I'm 25 weeks with my first, I've been feeling her move since 18 weeks but with reasonable consistency over the past 3 weeks. Mostly morning and evening.
Some evenings she's quite active and punchy and I can see my tummy moving, and I expect this is down to her position at the time. Last night it was extremely infrequent and not very strong, even when I was pressing around my abdomen to try and get her moving.
This morning I have felt usual morning movements, but once I get up I generally don't feel her until the evening. I'm concerned that if I wait until tonight to see how she moves, it might be too late if there's a problem. I'm also concerned that I'm panicking about nothing!
Sorry for the essay, I guess I'm just seeking some reassurance that this is quite normal by women who have been here before.