My ❤️beat is making it hard to feel baby kick

I was asked how often I can feel baby kick as I'm 16w4d today and was 16w2d when I was being seen and my OB records indicated that we had thought we felt baby about a wk prior to my 16wk check-up. I said not that often. The dr was disturbed by the news as this my 3rd pregnancy regardless of the fact the first two ended before 7wks. According to him I should be able to feel baby at least 2-3 times a day by now if not more. DH and I felt baby around 15wks when I was super constipated, but rarely after I was able to start having bm every day. I know baby is ok as they heard baby's hb and saw it on the ultrsound. 

Now here is what is weird. If I try to feel baby kick (baby is at the top of my uterus according to my OB and the ultrsound techs), all I feel is my heartbeat...it is so strong you can see my belly bounce to the beat of my heart. 

Is it too early to feel baby kick? A fellow pregnant coworker who is about 5wks ahead of me said she could feel baby daily from 16wks to about 20wks but after her anatomy scan its about every 2 days unless she plays with her belly.