they say the bigger the easier, but I think i may discover how true that is with this one, my midwife reckons over 8lb for this one, my weights so far have been 5lb12, 6lb8, 4lb 6 (prem), 6lb15, then last baby 6lb 13. so a big jump but we are yet to see, i reckon about 7lb but i no midwife lol