Here’s a picture of the tops of the babies’ heads, squashed together inside the belly of their increasingly unfeasible mother. The pregnancy is at around 26 weeks now. Twin pregnancies rarely go beyond 38 weeks, but that still means poor Ursula’s still got 12 weeks to go. They currently weigh around 750g each. By they time they’re born, they will weigh over 3kg each. Us guys really do have it easy not having to deal with pregnancy!