I am at 28 weeks now. I have yet to feel any kicks or movement from the baby. When do we usually start to feel baby movement?

I felt movement starting at 15 weeks, which is earlier than average. There are many factors that can effect how much movement you feel such as baby's position, the position of the placenta, and mother's weight. I would talk to your OB and make sure it is one of these reasons and not something to be concerned about.