Fetal movement will actually start as early as six weeks into a pregnancy, but it is very rare for any expectant mother to feel this anterior placenta or not! When you have a posterior placenta, attached to the back wall of the uterus, you can expect to feel fetal movement between 12 and 16 weeks along. When it will happen for you depends on whether you are pregnant for the first time, or have already been pregnant before. Women who have an anterior placenta might not feel their baby kick until they are 20 weeks or even further into their pregnancy.
I had an anterior placenta with my second child, and I could feel him at around the 20 week mark. Recognizing fetal movement can be hard at first, especially if your placenta is in the way. Women who are not feeling their baby move on a regular basis by 20 weeks may want to ask their doctor to confirm placental location and check that the baby is doing well through an ultrasound. Not feeling much fetal movement during pregnancy is normal when you have an anterior placenta, but if you regularly felt your baby kick before and suddenly notice a decrease or halt in the movements, get in touch with your healthcare provider right away.