It just depends. I felt movements on occasion pretty early in this pregnancy. At 16 weeks I was feeling at least something once a day. A couple weeks later I was getting nervous because the movements were still sporadic. (I figured I should be feeling them strong and regular since they started early.) However, it turned out that I did actually have an anterior placenta. That's a first for me, so I didn't know what to expect. For a couple weeks, as my uterus moved up in my abdomen, I only felt movements around where the placenta would be (so only on the sides and really low, and not so much in the middle/front). Now I'm 24 weeks and feeling them all over. Feeling the movements lightly on the outside, too, in spite of my uncooperative placenta. LOL