I felt mine later also. Pretty soon you'll feel them non stop! I'm 31 weeks now and she hardly stays still.
That is perfectly normal with my first I did feel actual kicks until about the same time, this one I felt him at about 16 weeks
At first your baby kicks wont feel like kicks they feel like flutters or popping bubbles. Then as your baby grows and gets bigger the kicks become harder. You can feel them anywhere from week 17 or so to week 23 so you've still got time!. I started feeling my son around week 17 but I had to be very still and quiet and it was mostly after I ate a meal. Your placenta could also be on the outside which they say blocks some of the feeling of the kicks. At 22 weeksI felt him for the first time with my hand outside my belly but I knew what I was feeling. Just pay attention to your body any bubbly, small jumping, fluttery feelings that you question arent gas bubbles or indigestion are most likely your baby :)