A mono-di (or mo-di) twin pregnancy is one where twins share a placenta and each have their own amniotic sac. Mono-di is short for monochorionic diamniotic, meaning one chorion, two amnions.

Monochorionic-Diamniotic (Mono-Di): Each twin has their own amniotic sac, but they share the placenta. This is only possible with identical twins. Monochorionic-Monoamniotic ...

Jesy Nelson has broken down in tears while revealing her babies ‘could die’ from complications that can arise with mono/di twins.. The Power hitmaker, 33, shared the news she and Zion Foster ...

Former Little Mix star Jesy Nelson revealed she is carrying Mono/Di twins this week as she opened up in an emotional video. And a mum whose twins also had the condition has shared an urgent health ...

If they split between day four and eight, then you have one placenta and two sacs (mono-di). If they split between day eight and 12, they will share a placenta and a sac (mono-mono),” Schenone said.