How likely is it that my second baby due in 4 weeks will weigh less than my first?

[summerglory]

My dd weighed 9lb 5oz at birth and I'm struggling to find anyone whose second baby weighed less than their first (exculding premature babies).

I'm pretty sure that my baby will be heavier than my dd, I'm not worried just interested from a practical point of view - no point buying newborn clothes that only go up to 7lb 8oz if I'm looking at a 9lber plus baby!

DD1 was 8lb13oz at 41weeks, DD2 was 8lb7oz at 40+3. DS was 4 weeks early and 7lb7oz, I dread to think what he would have been if he'd gone to term.