I am 19 wks with twin pregnancy. At p 14 weeks diagnosed as posterior low lying placenta extending upto internal os and had severe bleeding . Managed conservatively. At 19 week anamoly scan done where placenta is posterior and 3.6 to 4 cm away from the internal os.done with cervical encirclag. My concern is that currently still advised bed rest and started on heparin. Are there chances of placenta to come down or bleeding. Is placenta still low lying. Will babies weight loosen up the stitch.