hi just wondered if anyone else out there could just tell me what to expect really as at my 20 week scan was told i had a low lying placenta and got booked in for another scan at 34 weeks. The midwife did say it was only a little bit covering so hopefully would've moved up by 34 weeks. Just wondered what to expect really...do i need a full bladder? Will i get pictures again? Is it just a usual abdominal scan as did read they do internal ones? Hope someone can help :)