As title says really.. I can't seem to find the size 2 huggies disposable swim nappies, without paying a stupid amount for only 6 nappies and a towel every time!! We're starting Water Babies next week, and LO needs a disposable swim nappy, with the reuseable Happy Nappy over the top. It wouldn't bother me so much if she could get into the size 3s just about, but she's only 11lb 2oz (she's a slow gainer) and a VERY skinny baby.. And the size 3s are for a minimum of 15lbs! Any equivalent size 3 nappies (Boots etc) are 9-20lbs, and I tried LO in a 9-20lbs normal nappy out of curiosity today, and it was FAR too big, so no hope with a swim nappy. Help?!