if its your first pregnancy you may not feel them still for a couple more weeks.. every pregnancy is different but its not uncommon to feel them later on.... Movements dont really get regular until after 28 weeks, and even after that I found from movements your could hear through the monitor, I was only feeling about 90% of them at 31 weeks... Im also all baby in the front and started feeling movements around 17 weeks and my hubby could feel them by 18 weeks.... You should bring it up at your next doctors appointment... If your baby is facing your back, chances are you wont feel them at all at this point... Your baby will move around alot and whenever my baby was punching inward, i hardly felt anything in the earlier months.
You might not feel them, i just reached the 5month mark, maybe flutters if I keep my hand there, 1 outta 15 times I think I feel something my dr said I could more around 20weeks, I'm also a heavier girl, but every pregnancy is diff!