Monochorionic diamniotic (MCDA) twins share a single placenta with a single outer membrane and two inner membranes. MCDA as described by the NHS
From the day we told everyone I was pregnant everyone joked that we would be having twins, my Mother being the biggest culprit and more than likely the ring leader of it all and when the Midwife told us she could see a second blimp on the screen and had to go get the Consultant we still thought she was joking, until the Consultant Mrs Scoffield confirmed that yes we were having twins. I started giggling, I couldn't help it. Hubbie just sat there with this weird look on his face. We were then taken to Mrs Scoffield's room and again I was covered in the horrible gel and our twins were examined then we were told that they were MCDA twins and as straightforward as possible we were told the facts, what my ante-natal care would be, what the worst case scenarios were and what actions would be put into place should the worst happen.
We left the clinic feeling completely and utterly drained we were on an emotional high after just finding out we have conceived identical twins naturally but we were also terrified about what may happen to them but that wasn't the end of our day cause we then had to go and get bombarded with all the healthy eating info etc from another Midwife (and I must admit I don't remember a word of what she said).
Our twins shared a placenta and even though there were two inner membranes the dividing wall between them was far too thin and we were at a risk of Twin-to-Twin Transfusion Syndrome and our babies would need constant monitoring to ensure that if it did happen they caught it in time to act on it. Coupling TTTS with my history of high blood pressure I was going to be poked and prodded every chance they got.
That was the start of having an appointment every Wednesday fortnight until Christmas to make sure both our babies were growing at a rate they deemed acceptable, I was taken off my blood pressure tablets and it was watched constantly and I was put on aspirin and iron tablets earlier than I was expecting because of our twins (the 1st time I had a pee after taking those was quite a shock!!) and instead of being scanned by a Midwife I had another Consultant doing the honours and the only thing he really said to me was don't worry if I don't talk, that's a good thing cause it means everything is ok with your babies. Some talk would've been good as it would've put me at my ease a little more but he was doing his job and I can understand he couldn't be distracted.
We managed to get to Christmas without any fear of Twin-to-Twin Transfusion Syndrome and for that we were grateful but as soon as I thought I'd be able to have a semi-normal pregnancy I was told I still had to have fortnightly appointments, but at least this time I was allowed to go to the normal ante-natal clinic and not the Specialist upstairs so I got to feel a little more normal at least.
We were really lucky in that our twins didn't suffer any problems, we were able to avoid TTTS and our girls were born healthy at 36 weeks, because they were MCDA twins I wasn't allowed to go over 36 weeks as it posed too great a risk for them. My caesarean was planned for 1st March 2010 and everything went smoothly with our girls as perfect as possible
Catherine (L) born 9.46am 6lb and Anna (R) born 9.48am 5lb 7oz
And now in a fortnight's time they'll be 2!!