It'll probably be okay!

Firstly, as others have said, it's a prediction, a guess, and as you can hear from plenty of stories, they're often wrong.

Secondly, my first bub was 9lb4oz, and it was fine. I did it drug free - not saying that to show off or anything, but to point out that at no stage did I even contemplate asking for drugs, and I thought I'd at least be tempted! The hormones my body produced at that time were so effective, they were all I needed! And really, the main part is head circ and position.

All the best, and have faith in your body's ability to birth - we're more capable than we realise!