Usually, most women feel movement in the range of 20 weeks. We tend to get more anxious as we age and as we have forgotten the teeny milestones of previous pregnancy. Then we start to compare....

Since this is your third, go ahead and call the doctor. You've paid for his/her services and will feel more comfortable if you are monitored carefully. If all is well, a false alarm it was. Better to err on the side of anxiety than to find out something could have been corrected early on.

Best of luck.