Hi ladies, I am 20 weeks pregnant with identical twin girls. At 20 week scan yesterday, they told us there is a 21% discrepancy in size between the two and I need to go back in another week for a further scan to monitor for ttts. Their bladders both appear normal, as do their hearts, however the larger twin has slightly more amniotic fluid than the other. Has anyone else experienced this and what was the outcome? Does the size discrepancy ever rectify itself? I'm feeling terrified and helpless at the moment....!