That's totally normal at 17 weeks, especially if this is your first baby.
I'm 31 weeks and feel the baby a lot, mostly in the morning and evening/night. At midday and throughout the early afternoon, he/she is pretty quiet - probably snoozing because I know that periods of sleep increase as delivery approaches.
Of course I'm far enough along that I'm at the stage where I can see and feel baby parts poking out, and if I prod them they move!!!
I am 22 weeks and feel the baby off and on during the day. It started off slow around 19 weeks where I would feel it maybe 2-3x day and now I feel it a few times an hour. I cant wait to feel the bigger kicks and see it on the outside of my belly.
I'm 22 w and I feel the baby moving all throughout the day BUT not non-stop, only here and there. When I was 18 w I was feeling the baby moving only once during the night or so. It's not that the baby doesn't move, but its too small for you to feel it. When he/she starts growing bigger, you'll be able to feel her/him more.
I started feeling the baby move early on and then it stopped around 17 weeks, then started again a week later.I think it's normal to not have regular movement until about 22 weeks. :)