I am the same as @soontohavetwo. I have an anterior placenta (at the front) so the baby is using the placenta as a cushion so not feeling much at all but he was very active at my scan yesterday. :-)
I'm havind the same issue except I can feel tiny kicks on my sides. I asked dr @ us and she said my placenta is attached at the front of my stomach. Making an extra barrier that I have. She said as the baby gets stronger I should feel more. Good luck!
I'm pregnant too with my second and still can't feel the baby either. :( sometimes I think I can feel the baby but I really don't know.. I'll be 21 weeks on saturday
Im also on my second pregnancy and felt the flutters at first and now not feeling much i have gone to the doctor and heard the heartbeat and know hes ok..but i went to my ultrasound and seen him moving inside and couldnt really feel it at all so i have calmed down as much as possible about it but i know how you feel...scarey making they little guys!!! I am showing quite a bit and they told me i cant feel it much becuz of all the water and stuff..dont know if that helps but i wish you the best :)
I don't think you should be concerned. Every pregnancy is different. Im due March and also having a boy but it's my first boy and his very active.