When you become pregnant, at the time of implantation of the embryo the baby’s placenta attaches to the wall of the uterus. It attaches itself much like the moss on a rock and remains firmly adhered until after the baby is delivered.
The uterus develops from the size of a pear to over the size of a large watermelon in the first 30 weeks of pregnancy. The placenta can develop in any position inside the uterus. The anterior position is when it implants on the inside of the front wall of the uterus. This is a very safe position for both the developing baby and the progress to a natural delivery.
As the pregnancy progresses past the first trimester, the placenta thickens to a similar size of a thick crust pizza base. Subsequently women and their partners often don’t feel as many kicks from the baby, or feel the kicks a few weeks later than usual (20 weeks of pregnancy). This is in no way a reflection of your baby’s wellbeing and is of no concern.
If kicks become so muffled by a placenta then more frequent heart beat monitoring may best be performed, particularly in the last few weeks of pregnancy. At this stage the baby’s, movements are more important to monitor each day.
The placental position in the uterus can also be described as posterior (back wall), lateral (side wall), fundal (roof), corneal (corner – left or right) or praevia (next to or covering the outlet of the uterus – the cervix).
You cannot alter or determine where the placenta attaches and this will vary with each pregnancy.
Thank you to Obstetrician Dr Guy Skinner for writing this post.