I had my scan today, i'm currently 19+4. all looked good with very active baby, but there is a next to the sac. it was there at 10 weeks, but not noted at 12 week scan. the sonographer didn't seem concerned, but i can't help being worried. has anyone else has one in their 2nd or 3rd trimester? apologies for lack of capital letters, using new phone and struggling with it!