Hi just looking for any similar stories! And experiences of TTTS occurring later in pregnancy.
I’m 31 weeks with identical twins, up until my 28 week scan there was never any more than 10g between them and then at my 28 week scan there was 100g between them - one was 2lbs 10oz, just above 50th centile, and one was 2lbs 7oz, just below 50th centile. A size difference of 9%
At my 30 week scan there was 190g between them, one had dropped to the 40th centile at 3lbs 3oz, and the other had gone up to the 75th centile at 3lbs 10oz. A size difference of 15%.
They said they start to worry about twin-twin transfusion syndrome when the size difference gets to 20% but they weren’t concerned about it at my last scan.
I’m worried for my scan next week in case that difference has increased to the 20%. I’ve read that TTTS can come on quickly towards the end (acute TTTS) so I’m panicking about how big the size difference might be next time. But I also have gestational diabetes and I’m wondering whether this could explain the size increase in the larger twin.
I’m just wondering for those twin mums with GD, have you found both babies are bigger than average or just one, or maybe no increase in size at all? I’m not sure if the diabetes would normally affect just one baby or both? I would assume both but not sure.
For twin mums without GD do you have a similar size difference between your babies as me or are they roughly the same size as each other? A 7oz difference doesn’t sound like much but they’ve got me panicking the number is creeping up closer to that 20% difference figure.
If i do end up having to be referred to fetal medicine as they’ve said i will if it does get to 20%, what can I expect at this stage?