i am 12 weeks pregnant with twins. i went to my u/s yesterday and after being told months ago that the babies are fraternal and in seperate sacs and all is well i am told that they only see 1 placenta and now i am at high risk of ttts. i did some research on ttts when i got home and it has me terrified. as if i am not scared enough being prego with twins. were any of you at risk or did your twins have ttts and have everything work out ok?