An anterior placenta is a common placental position during pregnancy that can influence how and when fetal movements are perceived. This article explores what an anterior placenta is, its effect on feeling your baby move, and how to monitor fetal movement when you have this placental position.
Understanding Anterior Placenta
The placenta is a temporary organ that develops in the uterus during pregnancy, forming where the fertilized egg implants into the uterine wall. It serves a role by providing oxygen and nutrients from the mother to the baby via the umbilical cord, and removing waste products. It can attach to various locations within the uterus, including the top (fundal), back (posterior), or sides (lateral).
An anterior placenta means the placenta is positioned on the front wall of the uterus. This is a normal and common placental position, occurring in up to 50% of pregnancies, and is not a cause for concern. Its location is usually identified during an anatomy scan around 18 to 21 weeks of pregnancy.
Impact on Fetal Movement Sensation
An anterior placenta can make it harder or take longer to feel the initial fetal movements, often referred to as “quickening.” This occurs because the placenta acts as a cushion between the baby and the mother’s abdominal wall. This cushioning effect can dampen the sensation of the baby’s kicks and movements, especially the more subtle ones.
Most individuals begin to feel fetal movements between 16 and 24 weeks of pregnancy. However, with an anterior placenta, these first movements are often felt later, sometimes after 20 weeks, particularly for first-time mothers. Early flutters and gentle sensations might be less noticeable as the placenta absorbs some impact. Stronger movements will still be felt, but their initial perception and overall intensity, especially those directed towards the front, may be reduced.
Monitoring Fetal Movement with an Anterior Placenta
Monitoring fetal movement remains important regardless of placental position. Even with an anterior placenta, it is important to become familiar with your baby’s unique pattern of movement. While the placenta’s position might mean feeling movements more on the sides or lower down, consistent monitoring helps ensure the baby’s well-being.
Healthcare providers recommend performing kick counts, particularly in the third trimester, to track fetal activity. This involves choosing a consistent time of day when the baby is active, getting into a comfortable position such as lying on your side, and counting how long it takes to feel 10 movements, like kicks, rolls, or flutters. This takes up to two hours. If there is a significant decrease in movement, no movement, or a noticeable change in the baby’s usual pattern, contact a healthcare provider immediately. Do not wait until the next day or your next appointment if concerns arise about reduced fetal movement.