Dd is 12 weeks old and is 13lb 15oz! She was out of the cocoon at 8 weeks!
She cries when I put the 23mo dd in the double seat above her so I have been using a sling for her and having dd1 in the pushchair.
We tried dd2 in the double seat the other night but she is far too small for it now.
When did you move your baby to the double seat? It seems silly having a double pram that I cant use properly!
I have tried moving dd2 up the seat so that she isnt under the seat so much but its still a tight fit.