<s>[INST] Hi i am 22 wks pregnant and had my 20wk scan 2 wks ago. Everything fine with the baby but they found out my placenta is low.......i have been worried since! do i have reason to worry? This is my fourth child and i had no problems with the other 3 pregnancies. I also had bleeding when i was 12 wks and they said this could be the cause. [/INST] Hi, Placenta can be found to be low-lying in 1/5 pregnancies at 20 week scans. This usually migrates by itself in most of them, by term. I would like to know if all your previous deliveries were normal or cesareans. Because if they were cesareans and the placenta was anterior, you may require further tests. A repeat scan at 32 weeks will help further to decide the mode of delivery, and usually if all previous pregnancies are normal most of the placenta are found in upper part of the womb, as they migrate, and normal delivery can be considered. Hope this helps. Regards. </s>