<s>[INST] Hi I am 21 weeks pregnant and have an anterior placenta, I had some spotting a couple of weeks ago which I had checked out and all ok, my 20 wk anomaly scan was also ok, however today I have had more sotting this time it is more of a flow of pinkish/brownish blood - what do you think could be causing this - might it be the position of the placenta? [/INST] If your placenta is low lying that is near to your cervical os it means it's placenta previa and bleeding is because of this position.  In this case you need to be cautious.  Avoid heavy work  or any strainous work. Avoid intercourse.   Take bed rest. Regular checkup is required. </s>