Placenta Position Concerns
The short answer
The placenta can attach anywhere on the uterine wall - anterior (front), posterior (back), fundal (top), or lateral (sides). All positions are normal. An anterior placenta may cushion the baby's movements, making kicks feel less intense or take longer to notice. The only concern is when the placenta is low-lying or covering the cervix (placenta previa).
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By Age
What to expect by age
Your placenta position is identified at the anatomy scan (around 18-22 weeks). An anterior placenta is very common and not a problem. You may feel baby movements later (closer to 22-24 weeks instead of 18-20) because the placenta acts as a cushion between the baby and your belly wall. This is normal.
With an anterior placenta, you may feel movements more on the sides and lower belly rather than the front. You should still feel regular movement patterns. Kick counts are still important. An anterior placenta does not affect delivery method or outcomes in most cases. If you need an amniocentesis, the provider will work around the placenta location.
What Should You Do?
When to take action
- Anterior, posterior, fundal, or lateral placenta position - all are normal
- Feeling kicks later than expected with an anterior placenta
- Kicks felt mainly on the sides or lower belly with anterior placenta
- You are not feeling regular movements by 24 weeks
- You notice a decrease in normal movement patterns
- Your placenta was noted to be low-lying at your anatomy scan
- Significant vaginal bleeding, especially if you know you have a low-lying placenta
- Sudden decrease in fetal movement at any stage
Sources
Related Resources
Trust your instincts. If something feels wrong, reach out to your pediatrician.
Worrying about your baby means you care. That is a good thing.
Related Maternal Concerns
Low-Lying Placenta (Not Previa)
A low-lying placenta found on the 18-22 week anatomy scan is very common and usually not a cause for concern. As the uterus grows, the placenta appears to "migrate" upward in over 90% of cases, resolving by the third trimester. Your provider will recheck the placenta position later in pregnancy.
Placenta Previa
Placenta previa means the placenta partially or completely covers the cervix. It is found in about 1 in 200 pregnancies at delivery. Many cases of low-lying placenta detected on mid-pregnancy ultrasound resolve on their own as the uterus grows. When placenta previa persists, a planned cesarean delivery is necessary, and with proper monitoring most outcomes are excellent.
Less Movement with Anterior Placenta
An anterior placenta (attached to the front wall of the uterus) acts as a cushion between the baby and your belly wall, which can make movements feel muffled or less intense. You may feel movement later (22-24 weeks instead of 18-20) and primarily on the sides and lower belly. This is normal, but you should still feel regular movement once it is established.
Dealing with Abnormal Prenatal Screening Results
An abnormal prenatal screening result can be terrifying, but it is important to understand that screening tests are designed to cast a wide net and have significant false-positive rates. Most people with abnormal screening results go on to have healthy babies after further testing confirms the baby is fine. An abnormal screening is a reason for more information, not a diagnosis.
Pregnancy Over 35 (Advanced Maternal Age)
While pregnancy after 35 carries some increased risks (including chromosomal abnormalities, gestational diabetes, and hypertension), the vast majority of people over 35 have healthy pregnancies and healthy babies. The term "geriatric pregnancy" is outdated and does not reflect reality. With appropriate prenatal care and monitoring, outcomes are excellent.
Amniocentesis Questions and Fears
Amniocentesis is a diagnostic test performed between 15-20 weeks that analyzes amniotic fluid to detect chromosomal conditions and genetic disorders with over 99% accuracy. The risk of pregnancy loss from the procedure is approximately 1 in 500-1,000 when performed by an experienced provider. Understanding the actual risks can help you make an informed decision.