I know it's *slightly* later, and that 2 weeks inside mummy can make all the difference, but my stepbrother was born at 26 weeks and is now perfectly healthy and in his twenties! So I think 24 weeks is just a bit too far on IMO. And not being funny, Lizzie was 'my baby' from the word go, so it's not like you don't bond with 'it' before 21-24 weeks!